What are typical pregnancy tares for IUI?
The pregnancy rates for IUI vary widely, depending mostly on the female partner’s age and the presence or absence of any other infertility factors. In patients younger than 35 years old, an estimated one-third to one –half of patients will achieve pregnancy within 1 to 4 treatments. In patients with unexplained infertility, most studies demonstrate a per-cycle pregnancy rate of 6% for the Clomid/IUI combination and 9% to 12% for the gonadotropin/IUI combination, compared with a spontaneous pregnancy rate of less than 5% per month. Many fertility doctors will try 1 to 4 cycles of Clomid/IUI and then 1 to 4 cycles of gonadotropin/IUI. If pregnancy has not occurred after the fourth treatment, most experts would abandon these treatments and proceed with more aggressive therapy such as in vitro fertilization. The optimal number of IUI treatment cycles should be individually determined by the patient and her infertility specialist.
