IRCT201310025181N11 IRCT 2013-10-15 Vice Chancellor for Research of School Medicine ,Tehran University of Medical Sciences Comparison of pregnancy outcomes in two embryo transfer in IVF Comparison of pregnancy outcomes in two ways in the early stages of transition and transfer of Blastocyst in IVF in Asr Hospital. 2012-09-22 anticipated 100 Complete https://irct.ir/trial/5555 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment. 3 Female infertility associated with anovulation. Intervention 1: 21 cycles of agonists, GnRH 500 mcg subcutaneously Will continue until the day of HCG injection. And the next cycle of 2-3 days Gonadotropin 150 IU is injected . Based on ovarian response, the drug dose is increased . And the size of the follicle reaches 18-20 mm, HCG injections are administered at a dose of 10,000 units. 36 hours after the eggs have been taken AND IVF with using sperm with eggs are fertilized In the second or control group at the blastocyst stage (5 days) is passed. Intervention 2: 21 cycles of agonists, GnRH 500 mcg subcutaneously Will continue until the day of HCG injection. And the next cycle of 2-3 days Gonadotropin 150 IU is injected . Based on ovarian response, the drug dose is increased . And the size of the follicle reaches 18-20 mm, HCG injections are administered at a dose of 10,000 units. 36 hours after the eggs have been taken AND IVF with using sperm with eggs are fertilized . in the first group or the intervention early cleavage stage or 2-3 day old embryos are transferred and.