Generally, the best chance of pregnancy is when sex happens 1-2 days before ovulation. If you have a regular 28-day cycle, count back 14 days from when you expect your next period to start. Plan on having sex every other day around that time -- say, days 12 and 14.  Keep in mind that having sex every day may lower a man's sperm count. Your cycle may be longer or shorter, so an online ovulation calculator may help you figure out the likely day.

No matter how many times you've been asked, "When will you have another baby?" the query still stings. Try coming up with a quick comeback—like 'We actually love having an only child'—and commit it to memory, says Dr. Davidson. Another heartbreaker: your child's pleas for a sibling. Try, "You're so wonderful we don't need anyone besides you." Or maybe admit, "We'd like nothing more than to make you a big brother. We hope it'll happen."
Our specialized team of andrologists prepare each sperm sample with a procedure commonly known as "sperm washing" in one of our andrology laboratories. Sperm washing involves placing the sperm sample in a test tube and then a centrifuge, which results in the sperm collecting in a "pellet" at the bottom of the test tube. The andrologist removes the seminal fluid and places the fluid (media) above the sperm. The most active sperm will then swim up into the media. The final sample consists of the most active sperm concentrated in a small volume of media. A single IUI is usually performed when a patient is using fresh sperm. If a patient is using a frozen sperm sample, the clinician can likely perform one or two IUIs.
Ovarian stimulation with hormonal medication is performed over a period of around 10-14 days. During this time, progress is monitored through ultrasound scans and blood tests. When enough oocytes (eggs) have developed in the ovaries, a final hormone injection triggers the maturing of the oocytes. Thirty-six hours later, egg retrieval is scheduled to take place in the fertility clinic.
Your doctor will also monitor whether or not the treatment led to a multiple pregnancy. IVF has a higher risk of conceiving multiples, and a multiple pregnancy carries risks for both the mother and the babies. Risks of a multiple pregnancy include premature labor and delivery, maternal hemorrhage, C-section delivery, pregnancy induced high blood pressure, and gestational diabetes.
If both partners are young and healthy and have been trying to conceive for one year without success, a visit to a physician or women's health nurse practitioner (WHNP) could help to highlight potential medical problems earlier rather than later. The doctor or WHNP may also be able to suggest lifestyle changes to increase the chances of conceiving.[62]
There are many studies comparing success rates between clomid, letrozole, or gonadotropins for patients with unexplained infertility, but two stand out as the best and most informative. The first study was conducted at multiple sites across the country and was termed the AMIGOS trial. In this study, gonadotropins produced the highest pregnancy rate, followed by clomid, and then letrozole. However, almost one third of all pregnancies in the gonadotropin arm was either a twin or triplet gestation. This was significantly higher than the clomid or letrozole arms.
Gene mutations in men and obscure viruses in women can cause infertility. Here’s a basic list of the most commonly known reasons men and women can’t get pregnant, plus four research studies that describe lesser known causes of male and female fertility problems. If you’ve been trying to get pregnant for more than a year,… Read More »Causes of Infertility for Men and Women Who Can’t Get Pregnant
The eggs are then fertilized with sperm that has been optimized in the laboratory so that sperm with poor morphology or motility are discarded and the healthiest remain. Fertilization usually takes place through Intracytoplasmic Sperm Injection (ICSI). In this high-precision technique, the best single sperm are selected and individually microinjected into each egg.
Initial blood work, cycle tracking and fertility analysis is done. To begin IVF, your doctor or fertility specialist will evaluate your hormone levels and menstrual cycle to determine what medications and plan of action may be needed. You may also undergo a transvaginal ultrasound to examine your ovaries and reproductive system, ensuring that they are healthy.
Mutations to NR5A1 gene encoding Steroidogenic Factor-1 (SF-1) have been found in a small subset of men with non-obstructive male factor infertility where the cause is unknown. Results of one study investigating a cohort of 315 men revealed changes within the hinge region of SF-1 and no rare allelic variants in fertile control men. Affected individuals displayed more severe forms of infertility such as azoospermia and severe oligozoospermia.[27]
One in 8 couples (or 12% of married women) have trouble getting pregnant or sustaining a pregnancy. Infertility is defined as the inability to get pregnant after regular sexual intercourse without the use of any contraceptive methods for 6 months for those 35 years old or over, or 12 months for those under 35.(1)  Under normal circumstances the ability to get pregnant is at the most 25% each month. This number declines over time and starts to decline more rapidly once a women reaches her thirties, so that by age 35, the likelihood of getting pregnant each month is down to about 15%, and by age 40 it’s down to less than 10%.
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.

Twenty-eight days is the average length of a menstrual cycle, though anything between 21 and 35 days is considered normal. Fluctuating a little from month to month is one thing, but if your period is so irregular that you don’t even try to track it anymore, it could indicate a problem producing eggs, or ovulating. Ovulation disorders (meaning you ovulate infrequently or not at all) account for infertility in about 25 percent of infertile couples, according to the Mayo Clinic. One of the most common causes of female infertility is polycystic ovarian syndrome (PCOS)—a condition characterized by longer than normal stretches between periods, or even skipping cycles for months in a row. (Get the silent signs of PCOS here.) Irregular periods may also result from excessive physical or emotional stress, which can mess with the hormones responsible for stimulating ovulation each month; being too heavy or too thin, or gaining or losing a lot of weight quickly may also have the same effect. Talk to your doctor; he may be able to prescribe fertility drugs to help induce or stimulate ovulation.


While many cases of infertility remain unexplained, there may be answers in the epigenome. Unlike one’s genetic code, the epigenome is dynamic and can be modified by environmental factors and lifestyle choices. Fertility in many cases is a state which changes throughout one’s life. Given the lack of clear genetic or physiological causes of unexplained infertility, the epigenome is thought to be altered in this subset of patients. As a result, looking into the epigenetic basis of infertility can help clinicians inform treatment.
Many people of sub-Saharan Africa choose to foster their children to infertile women. IVF enables these infertile women to have their own children, which imposes new ideals to a culture in which fostering children is seen as both natural and culturally important. Many infertile women are able to earn more respect in their society by taking care of the children of other mothers, and this may be lost if they choose to use IVF instead. As IVF is seen as unnatural, it may even hinder their societal position as opposed to making them equal with fertile women. It is also economically advantageous for infertile women to raise foster children as it gives these children greater ability to access resources that are important for their development and also aids the development of their society at large. If IVF becomes more popular without the birth rate decreasing, there could be more large family homes with fewer options to send their newborn children. This could result in an increase of orphaned children and/or a decrease in resources for the children of large families. This would ultimately stifle the children's and the community's growth.[134]
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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.

The number to be transferred depends on the number available, the age of the woman and other health and diagnostic factors. In countries such as Canada, the UK, Australia and New Zealand, a maximum of two embryos are transferred except in unusual circumstances. In the UK and according to HFEA regulations, a woman over 40 may have up to three embryos transferred, whereas in the US, there is no legal limit on the number of embryos which may be transferred, although medical associations have provided practice guidelines. Most clinics and country regulatory bodies seek to minimise the risk of multiple pregnancy, as it is not uncommon for multiple embryos to implant if multiple embryos are transferred. Embryos are transferred to the patient's uterus through a thin, plastic catheter, which goes through her vagina and cervix. Several embryos may be passed into the uterus to improve chances of implantation and pregnancy.

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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