There should be performed more thorough tests of semen because, in the majority of clinics, they only performed standard semen analysis, and we know that there are some other things that should be looked into, so extended tests will be required. Another aspect is the quality of embryos which were transferred, in those previous 3 cycles. As well as, the number of eggs the recipient received, how many of them were inseminated, and what was the quality of semen. Also, the genetic status of both man and woman should be checked, as sometimes it could be a reason for miscarriage, another reason could be immunology. When it comes to the retroverted uterus, and as long as it is a normal uterus, it is not a problem. Hypothyroidism, if it is well treated, again that won’t be a problem. It is very difficult to find the one reason for something going wrong, and it requires to perform a lot more tests to be able to find the solution.