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.
Regarding potential spread of HIV/AIDS, Japan's government prohibited the use of IVF procedures for couples in which both partners are infected with HIV. Despite the fact that the ethics committees previously allowed the Ogikubo, Tokyo Hospital, located in Tokyo, to use IVF for couples with HIV, the Ministry of Health, Labour and Welfare of Japan decided to block the practice. Hideji Hanabusa, the vice president of the Ogikubo Hospital, states that together with his colleagues, he managed to develop a method through which scientists are able to remove HIV from sperm.[39]
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."

At the same time, in older women, the IVF success rates can vary dramatically, and that’s why it’s so important to focus only on live births. For example, a clinic may have a very high pregnancy rate among older women, but a low live birth rate. Or, the rates may be quite high – 40% or even 50% – but only after four or five rounds. That makes a very big difference, especially in the overall cost of treatment!
^ 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.
We also care about not only your physical well being, but also your emotional health. In fact, these issues as important enough to us that one of our core team members is a psychologist. Julianne Zweifel is an expert in addressing the mental aspects of secondary (and primary) infertility and she can promote emotional well being in a way that few others have the training or experience to do. If you should feel you do not wish to talk a specialist, but are struggling emotionally, please at least let other team members know-the more we hear from you, the easier it is for us to help.  
• Male factors causing infertility. Male infertility is due to the reduced number of sperms or low-quality sperms. In such cases, TESE is performed in which by making a small incision single sperm is extracted from the testis and is injected through intracytoplasmic sperm injections (ICSI) directly into a mature egg. This ICSI-IVF enabled method can help you achieve pregnancy.
Regarding potential spread of HIV/AIDS, Japan's government prohibited the use of IVF procedures for couples in which both partners are infected with HIV. Despite the fact that the ethics committees previously allowed the Ogikubo, Tokyo Hospital, located in Tokyo, to use IVF for couples with HIV, the Ministry of Health, Labour and Welfare of Japan decided to block the practice. Hideji Hanabusa, the vice president of the Ogikubo Hospital, states that together with his colleagues, he managed to develop a method through which scientists are able to remove HIV from sperm.[39]

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.
Bachelor of Arts in Translation and Interpreting (English, Spanish, Catalan, German) from the University of Valencia (UV) and Heriot-Watt University, Riccarton Campus (Edinburgh, UK). Postgraduate Course in Legal Translation from the University of Valencia. Specialist in Medical Translation, with several years of experience in the field of Assisted Reproduction. More information about Sandra Fernández

Oral drugs used to stimulate ovulation include clomiphene citrate and aromatase inhibitors. While taking these drugs, you will be monitored to see if and when ovulation occurs. This can be done by tracking your menstrual cycle or with an ovulation-predictor kit (an at-home urine test). You may be asked to visit your doctor for a blood test or ultrasound exam.


Cancer. Although some early studies suggested there may be a link between certain medications used to stimulate egg growth and the development of a specific type of ovarian tumor, more-recent studies do not support these findings. There does not appear to be a significantly increased risk of breast, endometrial, cervical or ovarian cancer after IVF.
A lot goes into determining your odds of IVF success. No matter how small or big each factor is, you should try to optimize all of them for a happy outcome. Don’t forget, you can also use the success rate calculator for a personalized predication. It is also important to plan multiple full IVF cycles no matter what the first IVF cycle outcome is. 3 full IVF cycles are generally recommended to improve your cumulative success rates. About two thirds of patients will be successful after six or more cycles of IVF.
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.
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. 
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