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.
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.
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.
If a physician believes infertility is a concern, a number of tests will be administered. For women, these may include ovulation testing, ovarian reserve testing, hormone testing, and hysterosalpingography (X-rays of the fallopian tubes) or other imaging tests. Assessing male infertility involves semen analysis, which examines the number of sperm, as well as their motility and morphology (shape). Other tests for men may include hormonal and genetic testing, testicular biopsy, and additional imaging.
Around one in 7 couples that require artificial reproductive treatment (ART) have "unexplained" infertility and doctors often first use approaches like ensuring the female partner's ovulation occurs at the same time as natural sex or artificial insemination/intrauterine insemination (IUI). They may then recommend IVF where thousands of the male partner's best sperm are purified and incubated with the egg — this is the preferred initial ART procedure in cases of "unexplained" infertility.

Within the Orthodox Jewish community the concept is debated as there is little precedent in traditional Jewish legal textual sources. Regarding laws of sexuality, religious challenges include masturbation (which may be regarded as "seed wasting"[129]), laws related to sexual activity and menstruation (niddah) and the specific laws regarding intercourse. An additional major issue is that of establishing paternity and lineage. For a baby conceived naturally, the father's identity is determined by a legal presumption (chazakah) of legitimacy: rov bi'ot achar ha'baal – a woman's sexual relations are assumed to be with her husband. Regarding an IVF child, this assumption does not exist and as such Rabbi Eliezer Waldenberg (among others) requires an outside supervisor to positively identify the father.[133] Reform Judaism has generally approved IVF.[129]
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.
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.
Nonmedicated cycle with IUI: Also known as natural cycle IUI, a non-medicated cycle with IUI is often used by single women or same-sex female couples who are not directly experiencing infertility, but rather a lack of sperm. This treatment involves tracking the development of the egg that is naturally recruited during a menstrual cycle and then introducing the donated sperm. You will come into the office for two to four monitoring appointments to track egg development and cycle timing. 

Women who switch from IUI to IVF sooner or begin with IVF get pregnant quicker than those who stick or start with IUI. One study found that undergoing immediate IVF resulted in superior pregnancy rates with fewer treatment cycles compared to those who did two rounds of IUI before switching to IVF.  While the immediate IVF group got pregnant quicker, the overall success after up to 6 IVF cycles was similar.
Kym Campbell is a Health Coach and PCOS expert with a strong passion for using evidence-based lifestyle interventions to manage this disorder. Kym combines rigorous scientific analysis with the advice from leading clinicians to disseminate the most helpful PCOS patient-centric information you can find online. You can read more about Kym and her team here.
In order for pregnancy to happen, sperm has to meet the egg. This normally takes place at the end of the fallopian tube, and this is called fertilization. There are a number of obstacles that can prevent this from happening, and the process itself even in healthy young fertile women is very complex- hence the low pregnancy rate each month. Obstacles such as cycle timing, low sperm count, poor sperm motility, blocked fallopian tubes, or endometriosis must be overcome to achieve a pregnancy. Timing is often the most common obstacle to conception. What does it mean for you when common causes of infertility are ruled out and you’re told you have unexplained infertility? It should mean a time of hope.
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