Only 30 percent of patients who receive 100 mg of Clomiphene a day will produce more than three follicles. Patients that produce less than than three follicles have about half the chance of getting pregnant than those that produce greater than three follicles. Patients that receive fertility medications but do not do an insemination have only half the success rates compared to those who do.
A genetic disorder. If you or your partner is at risk of passing on a genetic disorder to your child, you may be candidates for preimplantation genetic testing — a procedure that involves IVF. After the eggs are harvested and fertilized, they're screened for certain genetic problems, although not all genetic problems can be found. Embryos that don't contain identified problems can be transferred to the uterus.
^ Baker VL, Luke B, Brown MB, Alvero R, Frattarelli JL, Usadi R, et al. (September 2010). "Multivariate analysis of factors affecting probability of pregnancy and live birth with in vitro fertilization: an analysis of the Society for Assisted Reproductive Technology Clinic Outcomes Reporting System". Fertility and Sterility. 94 (4): 1410–6. doi:10.1016/j.fertnstert.2009.07.986. PMID 19740463.
Another major cause of infertility in women may be the inability to ovulate. Malformation of the eggs themselves may complicate conception. For example, polycystic ovarian syndrome is when the eggs only partially develop within the ovary and there is an excess of male hormones. Some women are infertile because their ovaries do not mature and release eggs. In this case synthetic FSH by injection or Clomid (Clomiphene citrate) via a pill can be given to stimulate follicles to mature in the ovaries.

Those fearful of conceiving with multiples should strongly consider IVF and only transferring one embryo at a time. In these circumstances, just 1% of pregnancies lead to twins, and triplets are even more rare. Alternatively, 8 - 30% of medicated IUI pregnancies lead to twins. Finally, the least preferable circumstance is do to IVF with multiple embryo transfer, where in women under 38 years of age, 30% of pregnancies culminate in a multiple birth.
In the United States, women seeking to be an embryo recipient undergo infectious disease screening required by the U.S. Food and Drug Administration (FDA), and reproductive tests to determine the best placement location and cycle timing before the actual Embryo Transfer occurs. The amount of screening the embryo has already undergone is largely dependent on the genetic parents' own IVF clinic and process. The embryo recipient may elect to have her own embryologist conduct further testing.
Intrauterine insemination is less successful if the cause of infertility involves decreased egg quality, diseased Fallopian tubes, or endometriosis. IUI treatment cannot improve the quality of the eggs within the ovaries or repair damaged anatomical structure. As with advanced age, it may be advisable to move to IVF earlier in the treatment timeline with these diagnoses.
^ Damian BB, Bonetti TC, Horovitz DD (January 2015). "Practices and ethical concerns regarding preimplantation diagnosis. Who regulates preimplantation genetic diagnosis in Brazil?". Brazilian Journal of Medical and Biological Research = Revista Brasileira de Pesquisas Medicas e Biologicas. 48 (1): 25–33. doi:10.1590/1414-431X20144083. PMC 4288489. PMID 25493379.
Obesity: The obesity epidemic has recently become is a serious issue, particularly in industrialized nations. The rising number of obese individuals may be due in part to an energy-rich diet as well as insufficient physical exercise.  In addition to other potential health risks, obesity can have a significant impact on male and female fertility. BMI (body mass index) may be a significant factor in fertility, as an increase in BMI in the male by as little as three units can be associated with infertility. Several studies have demonstrated that an increase in BMI is correlated with a decrease in sperm concentration, a decrease in motility and an increase DNA damage in sperm. A relationship also exists between obesity and erectile dysfunction (ED). ED may be the consequence of the conversion of androgens to estradiol. The enzyme aromatase is responsible for this conversion, and is found primarily in adipose tissue. As the amount of adipose tissue increases, there is more aromatase available to convert androgens, and serum estradiol levels increase. Other hormones including inhibin B and leptin, may also be affected by obesity. Inhibin B levels have been reported to decrease with increasing weight, which results in decreased Sertoli cells and sperm production. Leptin is a hormone associated with numerous effects including appetite control, inflammation, and decreased insulin secretion, according to many studies. Obese women have a higher rate of recurrent, early miscarriage compared to non-obese women.
^ GBD 2015 Disease and Injury Incidence and Prevalence, Collaborators. (8 October 2016). "Global, regional, and national incidence, prevalence, and years lived with disability for 310 diseases and injuries, 1990-2015: a systematic analysis for the Global Burden of Disease Study 2015". Lancet. 388 (10053): 1545–1602. doi:10.1016/S0140-6736(16)31678-6. PMC 5055577. PMID 27733282.
Perhaps except for infertility in science fiction, films and other fiction depicting emotional struggles of assisted reproductive technology have had an upswing first in the later part of the 2000s decade, although the techniques have been available for decades.[72] Yet, the number of people that can relate to it by personal experience in one way or another is ever growing, and the variety of trials and struggles is huge.[72]
Progesterone elevation on the day of induction of final maturation is associated with lower pregnancy rates in IVF cycles in women undergoing ovarian stimulation using GnRH analogues and gonadotrophins.[23] At this time, compared to a progesterone level below 0.8 ng/ml, a level between 0.8 and 1.1 ng/ml confers an odds ratio of pregnancy of approximately 0.8, and a level between 1.2 and 3.0 ng/ml confers an odds ratio of pregnancy of between 0.6 and 0.7.[23] On the other hand, progesterone elevation does not seem to confer a decreased chance of pregnancy in frozen–thawed cycles and cycles with egg donation.[23]
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Treatment with Clomid tablets plus IUI improves fertility rates. For unexplained infertility, studies have shown that for women under 35, monthly success rates for Clomid plus insemination are about 10% per cycle. This pregnancy rate holds up for about 3 tries and the success rate is considerably lower after that. More about success rates with IUIs is on the insemination page and on the Clomid for unexplained infertility page. The insemination component boosts fertility more than the Clomid does - but success rates are higher when both are used together.
Talk it out. Once you realize you’re entitled to your emotions, find an outlet for them. Talking about your feelings and your struggles can be a huge release and allow you to receive the support you need. If your family or friends don’t understand your sadness (or you find it hard to contain your baby envy around friends with more than one child), seek out people in your same situation. Find a support group for people with secondary infertility — online or in your area. And consider joining WTE's Trying to Conceive group to find moms who are also coping with secondary infertility.
Take a look at your lifestyle. Have any of your habits changed since you conceived baby number one? For instance, is your diet still on track, or is there room for improvement? Getting your eating plan up to baby-making speed may help you close in faster on conception. Has your caffeine consumption gone up now that you’re a mom? That’s understandable, but too much caffeine isn’t great for fertility. Has your smoking habit returned? If yes, it’s time to kick butt, since smoking ages your eggs and decreases fertility. Are you getting way too little sleep? That may be likely, especially if your first child is keeping you up at night, but skimping on sleep can mess with your hormones — and possibly your fertility. If any new unhealthy habit has slipped into your lifestyle, now’s a great time to put the brakes on it. And it’s not just about your habits. Is your partner kicking back one too many beers each night? That could be affecting his sperm quality. Ditto for smoking or an unhealthy diet. If your partner’s lifestyle needs a little fine-tuning, make efforts to get his back on track, too.

In IVF, a woman is given more medications to develop lots of eggs. Ideally, they develop around 15 mature eggs. The eggs are removed from the ovaries, fertilized and developed in a lab for a number of days, and subsequently put back into the uterus as an early-stage embryo. While this may sound like a relatively minor difference, it leads to leads to a large number of noteworthy differences.
IVF using no drugs for ovarian hyperstimulation was the method for the conception of Louise Brown. This method can be successfully used when women want to avoid taking ovarian stimulating drugs with its associated side-effects. HFEA has estimated the live birth rate to be approximately 1.3% per IVF cycle using no hyperstimulation drugs for women aged between 40–42.[63]
Limited long-term follow-up data suggest that IVF may be associated with an increased incidence of hypertension, impaired fasting glucose, increase in total body fat composition, advancement of bone age, subclinical thyroid disorder, early adulthood clinical depression and binge drinking in the offspring.[53][55] It is not known, however, whether these potential associations are caused by the IVF procedure in itself, by adverse obstetric outcomes associated with IVF, by the genetic origin of the children or by yet unknown IVF-associated causes.[53][55] Increases in embryo manipulation during IVF result in more deviant fetal growth curves, but birth weight does not seem to be a reliable marker of fetal stress.[56]

^ Tan K, An L, Miao K, Ren L, Hou Z, Tao L, Zhang Z, Wang X, Xia W, Liu J, Wang Z, Xi G, Gao S, Sui L, Zhu DS, Wang S, Wu Z, Bach I, Chen DB, Tian J (March 2016). "Impaired imprinted X chromosome inactivation is responsible for the skewed sex ratio following in vitro fertilization". Proceedings of the National Academy of Sciences of the United States of America. 113 (12): 3197–202. Bibcode:2016PNAS..113.3197T. doi:10.1073/pnas.1523538113. PMC 4812732. PMID 26951653.
We know this is a touchy subject, but unfortunately, there’s no way around it. Science says that age does play a role in fertility. This 2018 study correlated age as a statistically significant factor in secondary infertility compared to primary infertility. In the study, the average age of couples was higher among those experiencing secondary infertility.
It is extremely difficult for those with unexplained infertility to know when to stop looking for a cause, to say “enough is enough.” You may feel you are entering a state of limbo. You may feel stuck unable to grieve and get on with other options because you hang on to those slender threads of hope that the cause of your infertility will be revealed in the next test or treatment. Your sadness may intensify as time passes and you find no medical or emotional resolution. Consider finding a Support Group or Mental Health Professional in your area.
Progesterone elevation on the day of induction of final maturation is associated with lower pregnancy rates in IVF cycles in women undergoing ovarian stimulation using GnRH analogues and gonadotrophins.[23] At this time, compared to a progesterone level below 0.8 ng/ml, a level between 0.8 and 1.1 ng/ml confers an odds ratio of pregnancy of approximately 0.8, and a level between 1.2 and 3.0 ng/ml confers an odds ratio of pregnancy of between 0.6 and 0.7.[23] On the other hand, progesterone elevation does not seem to confer a decreased chance of pregnancy in frozen–thawed cycles and cycles with egg donation.[23]
Secondary infertility is a secret club and one, I've discovered, with permanent membership. I was in a supermarket the other day and ahead of me in the cereal aisle was a woman with a boy of about nine and twin babies in the trolley. As I passed, she turned and looked at us. I saw her clocking my children and their age-gap and she saw I was doing the same with hers. We looked at each other for a moment; she smiled and I smiled back and then we walked on.
This chart is US national average data on success rates per IVF cycle by female age for 2014. The dark blue line (triangles) shows pregnancy rates per cycle by age. The orange line (circles) shows live birth rates per cycle by age. The rate of singleton live births per cycle is shown by the light blue line. The difference between "pregnancy" rate and "live birth" rate is due to miscarriages.
Luteal support is the administration of medication, generally progesterone, progestins, hCG, or GnRH agonists, and often accompanied by estradiol, to increase the success rate of implantation and early embryogenesis, thereby complementing and/or supporting the function of the corpus luteum. A Cochrane review found that hCG or progesterone given during the luteal phase may be associated with higher rates of live birth or ongoing pregnancy, but that the evidence is not conclusive.[79] Co-treatment with GnRH agonists appears to improve outcomes,[79] by a live birth rate RD of +16% (95% confidence interval +10 to +22%).[80] On the other hand, growth hormone or aspirin as adjunctive medication in IVF have no evidence of overall benefit.[30]
Secondary infertility is similar to other types of infertility and shares many of the same signs. However, in secondary infertility you’re unable to conceive or carry a baby to full-term after having a previous successful pregnancy. Infertility can be caused by either the man or woman. Treatment options can include medications to induce ovulation, in vitro fertilization (IVF) or surgery.
Mild IVF[64] is a method where a small dose of ovarian stimulating drugs are used for a short duration during a woman's natural cycle aimed at producing 2–7 eggs and creating healthy embryos. This method appears to be an advance in the field to reduce complications and side-effects for women and it is aimed at quality, and not quantity of eggs and embryos. One study comparing a mild treatment (mild ovarian stimulation with GnRH antagonist co-treatment combined with single embryo transfer) to a standard treatment (stimulation with a GnRH agonist long-protocol and transfer of two embryos) came to the result that the proportions of cumulative pregnancies that resulted in term live birth after 1 year were 43.4% with mild treatment and 44.7% with standard treatment.[65] Mild IVF can be cheaper than conventional IVF and with a significantly reduced risk of multiple gestation and OHSS.[66]
Primary infertility is defined as the absence of a live birth for women who desire a child and have been in a union for at least 12 months, during which they have not used any contraceptives.[14] The World Health Organisation also adds that 'women whose pregnancy spontaneously miscarries, or whose pregnancy results in a still born child, without ever having had a live birth would present with primarily infertility'.[14]
Very slight elements of risk are associated with any medical intervention but for IVF the most notable risk in the past has been multiple births. The impact of multiple births on birth weight, premature delivery, and post-natal complications is well known. This is largely due to the practice over the past 30 years of transferring two or more embryos during IVF. Thanks to PGT-A testing and Single Embryo Transfer (SET), however, doctors can now feel confident about transferring just one normal embryo. At RMA, we have established SET as the standard of care going forward. With SET, the risk of multiple births is drastically reduced.

Treating secondary infertility, like primary infertility, will depend largely on any underlying medical conditions. Through the Couples Clinic at UW Health's Generations Fertility Care, both members of the couple undergo a routine evaluation. Since infertility is not simply a woman's problem, evaluating both members ensures the most effective treatments can be recommended.  


IUI is a procedure during which processed and concentrated motile sperm are inserted directly into a woman’s uterus. This procedure is timed according to a woman’s ovulation, and may be performed one to two times in the days immediately following the detection of ovulation. After ovulation a woman’s egg is picked up by the fallopian tube and waits there for the sperm. Since the IUI procedure deposits higher concentrations of good quality sperm close to where the egg is waiting, the chances that the egg and sperm will find one another are increased.
During an infertility workup, you and your partner will be asked questions about your current health and medical history. "We're looking to see what might have changed from previous pregnancies," says Dr. Tan. "If we find something we can fix—say, removing scar tissue—we'll start there." Also expect blood work and ultrasounds to determine whether you're ovulating and to check your egg supply, an X-ray to look for blocked fallopian tubes, and a semen analysis to measure sperm count and quality.
^ Lasa, JS; Zubiaurre, I; Soifer, LO (2014). "Risk of infertility in patients with celiac disease: a meta-analysis of observational studies". Arq Gastroenterol. 51 (2): 144–50. doi:10.1590/S0004-28032014000200014. PMID 25003268. Undiagnosed celiac disease is a risk factor for infertility. Women seeking medical advice for this particular condition should be screened for celiac disease. Adoption of a gluten-free diet could have a positive impact on fertility in this group of patients.(...)According to our results, non-diagnosed untreated CD constitutes a risk factor significantly associated with infertility in women. When comparing studies that enrolled patients previously diagnosed with CD, this association is not as evident as in the former context. This could be related to the effect that adoption of a gluten-free diet (GFD) may have on this particular health issue.
Embryo donation is the least expensive of the donor options. It's often cheaper than a regular IVF cycle. An embryo donor cycle costs anywhere between $5,000 and $7,000. This is assuming the embryo has already been created. (As opposed to choosing an egg donor and sperm donor and having the embryo created specifically for your cycle, which would be extremely expensive.)
Secondary infertility is similar to other types of infertility and shares many of the same signs. However, in secondary infertility you’re unable to conceive or carry a baby to full-term after having a previous successful pregnancy. Infertility can be caused by either the man or woman. Treatment options can include medications to induce ovulation, in vitro fertilization (IVF) or surgery.
The cost of an IUI is almost certainly less on a per cycle basis, but because IVF has much higher success rates and IUI is a poor option for some, the higher per cycle cost of IVF can actually be more affordable in the long run – in terms of the cost to bring home a baby.  Because most successful IUIs happen in the first three or four-cycle, it eventually becomes very expensive to bring home a baby with an IUI.
Impaired sperm production or function. Below-average sperm concentration, weak movement of sperm (poor mobility), or abnormalities in sperm size and shape can make it difficult for sperm to fertilize an egg. If semen abnormalities are found, your partner might need to see a specialist to determine if there are correctable problems or underlying health concerns.
Amongst these two patient populations (which we’ll refer to now as PCOS), IUI with clomid and letrozole generally shows no improvement versus when these drugs are taken without IUI. When IUI is coupled with gonadotropins, success rates reach 14 - 26% per cycle, which is higher than almost any other patient class, but still pales in comparison to IVF. It’s also worth noting that PCOS patients who are taking gonadotropins have a very high risk of multiples.
Success rates for IVF depend on a number of factors, including the reason for infertility, where you're having the procedure done, and your age. The CDC compiles national statistics for all assisted reproductive technology (ART) procedures performed in the U.S., including IVF, GIFT, and ZIFT, although IVF is by far the most common; it accounts for 99% of the procedures. The most recent report from 2016 found:
The consequences of infertility are manifold and can include societal repercussions and personal suffering. Advances in assisted reproductive technologies, such as IVF, can offer hope to many couples where treatment is available, although barriers exist in terms of medical coverage and affordability. The medicalization of infertility has unwittingly led to a disregard for the emotional responses that couples experience, which include distress, loss of control, stigmatization, and a disruption in the developmental trajectory of adulthood.[15] One of the main challenges in assessing the distress levels in women with infertility is the accuracy of self-report measures. It is possible that women “fake good” in order to appear mentally healthier than they are. It is also possible that women feel a sense of hopefulness/increased optimism prior to initiating infertility treatment, which is when most assessments of distress are collected. Some early studies concluded that infertile women did not report any significant differences in symptoms of anxiety and depression than fertile women. The further into treatment a patient goes, the more often they display symptoms of depression and anxiety. Patients with one treatment failure had significantly higher levels of anxiety, and patients with two failures experienced more depression when compared with those without a history of treatment. However, it has also been shown that the more depressed the infertile woman, the less likely she is to start infertility treatment and the more likely she is to drop out after only one cycle. Researchers have also shown that despite a good prognosis and having the finances available to pay for treatment, discontinuation is most often due to psychological reasons.[16]
Women are born with about 1 million to 2 million eggs but release only 300 to 400 through ovulation during their lifetimes. Usually, you release just one each month. The egg travels along one of the two fallopian tubes that connect your ovaries to your uterus. If the timing is right, sperm may fertilize it on its way to the uterus. If fertilization doesn't happen within 24 hours of the egg leaving the ovary, the egg dissolves. Sperm can live for about 3 to 5 days, so knowing when you are ovulating can help you and your partner plan sex for when you're most likely to conceive.
The second study by Huang et al. demonstrated nearly equivalent pregnancy rates between the three medications. Furthermore, the twin risk was not significantly elevated in any of the three groups. The key difference between these studies is that the dose of gonadotropins was higher in the AMIGOS study (150 units) than the Huang study (75 units). A higher dose often means more eggs ovulated and a greater risk of twins or more.
Treatment depends on the cause of infertility, but may include counselling, fertility treatments, which include in vitro fertilization. According to ESHRE recommendations, couples with an estimated live birth rate of 40% or higher per year are encouraged to continue aiming for a spontaneous pregnancy.[63] Treatment methods for infertility may be grouped as medical or complementary and alternative treatments. Some methods may be used in concert with other methods. Drugs used for both women and men[64] include clomiphene citrate, human menopausal gonadotropin (hMG), follicle-stimulating hormone (FSH), human chorionic gonadotropin (hCG), gonadotropin-releasing hormone (GnRH) analogues, aromatase inhibitors, and metformin.
It’s not because you just ate a whole lot of greasy food (myth!). Sudden, out-of-control acne could be blamed on fluctuating hormones (from your period or menopause), a whole lot of stress, or a medication side effect. It may also be a sign of polycystic ovarian syndrome. That’s because in women with PCOS, ovaries make more androgen—the “male hormone”—than normal. Elevated levels may lead to adult acne flare-ups, as well as excessive facial or body hair, and even male-patterned baldness. These natural acne remedies may help your skin.
Disclaimer: The information you enter is not stored by CDC and is only used to estimate your chances of success. The IVF success estimator does not provide medical advice, diagnosis, or treatment. These estimates may not reflect your actual rates of success during ART treatment and are only being provided for informational purposes. Estimates are less reliable at certain ranges/values of age, weight, height, and previous pregnancy and ART experiences. Please see your doctor and/or healthcare provider for a personalized treatment plan that is best for you.
Sometimes problems getting pregnant for a second or subsequent time are related to a complication that occurred in a prior pregnancy or prior to delivery (damage to the uterus, for instance). But most often, secondary infertility is caused by the same factors that would cause primary infertility — issues like advanced age, obesity, ovulation problems and so on.
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