Once the semen sample is ready, it'll be put through a special washing process, which separates the sperm from the other stuff that is found in semen. The embryologist will choose the “best-looking sperm," placing about 10,000 sperm in each culture dish with an oocyte. The culture dishes are kept in a special incubator, and after 12 to 24 hours, they are inspected for signs of fertilization.

Vzhledem k tomu, že vertikální přenos a vliv koronaviru SARS-CoV-2 na graviditu není dostatečně prozkoumán, mezinárodní odborné společnosti doporučují zvážit možná rizika spojená s těhotenstvím v oblastech zasažených onemocněním SARS-CoV-2. Z tohoto důvodu preferuje naše klinika zamražení získaných embryí a odložení transferu. Strategie léčby bude vždy posouzena individuálně ošetřujícím lékařem s ohledem na aktuální situaci v ČR a specifika léčeného páru.

Sunni Muslim nations generally allow IVF between married couples when conducted with their own respective sperm and eggs, but not with donor eggs from other couples. But Iran, which is Shi'a Muslim, has a more complex scheme. Iran bans sperm donation but allows donation of both fertilised and unfertilised eggs. Fertilised eggs are donated from married couples to other married couples, while unfertilised eggs are donated in the context of mut'ah or temporary marriage to the father.[176]
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]
Certain kinds of IVF, in particular ICSI (first applied in 1991) and blastocyst transfer (first applied in 1984) have been shown to lead to distortions in the sex ratio at birth. ICSI leads to slightly more female births (51.3% female) while blastocyst transfer leads to significantly more boys (56.1% male) being born. Standard IVF done at the second or third day leads to a normal sex ratio.

Other health related problems could also cause poor egg health, low ovarian reserve, or abnormal immunological responses, which can affect conception. Stress could also play a role. We all know that menstrual cycles can be altered during times of extreme duress- and this can be emotional, physical, or environmental stressors. In these instances, the first steps should be to avoid life stressors, maintain a healthy weight, routinely exercise, avoid smoking, and reduce alcohol intake, all of which may be contributing to unexplained infertility issues.
We don't know what causes most cases of secondary infertility, says Jamie Grifo, M.D., Ph.D., program director of the New York University Fertility Center, in New York City. "The majority of the time, though, it reflects the fact that you're older now, so it's simply more difficult to get pregnant." The reality is that for women, fertility peaks at age 25 and drops by half between ages 30 and 40. As we age, egg quality declines and we're more likely to develop fibroids and endometriosis, which contribute to infertility. Other factors such as adding extra weight, taking new meds, or having surgery since your last pregnancy can be an issue. It may also be that your partner's sperm quality or production is now poor.
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.
While I’m not on the list to receive a Nobel Prize for mathematics any time soon, I do have enough understanding of how probabilities work to know that roulette isn’t a very viable long term career choice. Figuring that if I could make this costly error in analysis, there must be at least a few others out there that have, or will, make the same mistake as me…

I found that I couldn't avoid the sense that we were not yet all here, that there was a person missing. In one of those strange confluences, I was, at the same time, writing a novel about a woman who had just given birth. I was spending my days at the fertility clinic and my evenings writing about the strange, shadowy world of early motherhood. My husband, coming into my study and finding me in tears again, laid his hand gently on the manuscript and said, "Do you ever think that writing this book might not be helping?" But you don't choose the books; they choose you. And if I couldn't bring a baby into being in real life, I was damn well going to do it in fiction.
When transferring more than one embryo, the risk of pregnancy and newborn complications also increases.1 Among IVF babies, twins are 12 times more likely than singletons to be delivered prematurely, 16 times more likely to be underweight and 5 times more likely to suffer from respiratory complications. Among IVF mothers, mothers of twins are 2.5 times more likely to have pre-eclampsia, over 8 times more likely to have premature preterm rupture of membranes and 4 times more likely to require a Caesarean section.
Fertility is often something people do not consider until they are actively trying to start a family, or in many cases after they have started having trouble conceiving. What many don’t realize is that couples ages 29-33 with normal functioning reproductive systems only have a 20-25% chance of conceiving in any given month. Add in any number of infertility factors from either gender and those chances can decrease significantly.
Ovulation induction with IUI: The goal with ovulation induction is to recruit and develop a single egg during the stimulation phase. At the time of ovulation, insemination occurs, placing the sperm directly into the uterus. IUI puts the sperm closer to the egg than possible with intercourse alone. You will come into the office for three to five monitoring appointments to track egg development and cycle timing.
Having no period means ovulation isn’t taking place at all, so a pregnancy can’t happen because no eggs is making itself eligible to be fertilized. Similarly, having irregular periods makes achieving pregnancy difficult, because it’s hard to time intercourse properly -- if sperm and egg aren’t at the same place at the same time, there is no chance of pregnancy.
When you know your menstrual cycle, you improve your chances of getting pregnant. The first phase starts with the first day of bleeding during your period. Your body releases hormones, like follicle-stimulating hormone (FSH), that make the eggs inside your ovaries grow. Between days 2 and 14, those hormones also help thicken the lining of your uterus to get ready for a fertilized egg. This is called the follicular stage.
When Sarah Bozinovich and her husband, Joe, decided to start a family, they were amazed by how quickly they were on the road to parenthood. "I went off birth control in April and was pregnant in May," says Bozinovich, of Mokena, Illinois. About a year and a half after their daughter's arrival, the couple was ready to expand their family. But they'd try for more than two years and endure many medical tests and fertility treatments to have the second child they so badly wanted. Like many other parents, they struggled with secondary infertility, the inability to conceive or carry a baby to term after having one or more children. Says Bozinovich, who was 27 when her problems began, "It's so surprising because no one could tell me why I couldn't get pregnant, when I got pregnant so easily before."

That’s about the time frame women between the ages of 35 and 40 should give themselves, before discussing fertility concerns with their doctor. For women under 35, experts recommend trying for about a year—really trying, as in unprotected, well-timed intercourse—before having any testing or treatment; women over 40 may want to consult an obstetrician/gynecologist right away. See your doctor sooner than later if you’ve suffered multiple miscarriages, have a history of pelvic inflammatory disease (a serious complication of some STDs), or experience any other symptoms of infertility. Meanwhile, learn these infertility myths you don’t have to worry about.

West states that the "hardest thing about secondary fertility issues is that you want a sibling for your child." Fiona, who has a son of five and has been trying to conceive a second child for two years, says she can no longer look out of the window at her son playing in the garden. "It breaks my heart. He just looks so alone out there. All I want is a sibling for him but I don't think it's going to happen."
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]
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.
The AMIGOS study suggested that clomid provided the best balance of a high pregnancy rate with a reasonably low multiple rate among couples with unexplained infertility. However, the authors of the Huang study concluded that on balance letrozole was better. From our vantage point, given that clomid more commonly causes multiple eggs to be ovulated, it seems like the slightly better option between the two because the whole point of treatment in unexplained infertility patients is to increase the odds of delivery by increasing the number of eggs ovulated.
Studies have indicated that IVF mothers show greater emotional involvement with their child, and they enjoy motherhood more than mothers by natural conception. Similarly, studies have indicated that IVF father's express more warmth and emotional involvement than fathers by adoption and natural conception and enjoy fatherhood more. Some IVF parents become overly involved with their children.[136]
The diagnosis is one of exclusion — that is, one which is made only after all the existing tests have been performed and their results found to be normal. This is why the frequency of this diagnosis will depend upon how many tests are done by the clinic — the fewer the tests, the more frequent this diagnosis. And the better the tests, the more likely you are getting a diagnosis instead of being told it's "unexplained."

Consider your health status. Have you started any medications that might be interfering with conception? What about a change in your health status (a new chronic condition that’s cropped up since your first baby was born, for instance)? Any changes to your health could be putting a dent in your conception plans. Perhaps some simple health modifications — like switching to a more fertility-friendly medication, for instance, or getting your chronic condition under control — could bring you closer to the second baby of your dreams.

Though there are some risk with older women pregnancies, there are some benefits associated with caesareans. A study has shown that births over 40 have a lower rate of birth trauma due to increased delivery by caesarean. Though caesarean is seen to benefit mothers over 40, there are still many risk factors to consider. Caesarean section may be a risk in the same way that gestational diabetes is.

Post transfer – You’ll likely take progesterone and estrogen to improve implantation and pregnancy rates. If the transfer is successful, a blood pregnancy test will be positive in 10-14 days. From there, ultrasounds are used to ensure the implantation site as well as check for a heartbeat. The good news is that once a heartbeat is detected, the pregnancy has a 90-95% probability of the pregnancy resulting in a live birth.