Dear Dr. Sher,

Im 37 years old with long story of 15 natural chemical pregnancies and after one ovarian stimulation with my oen eggs but with no blastocysts in October 2023 I decided to go through frozen donor eggs from a bank abroad. The same results even with the donor eggs, no blastocysts in the end. Husband’s kariotype is normal. 2 last times the ICSI have been performed in the same lab. Do you thing it might be the error in the lab or my husband sperm might be also the problem?

Thank you so much for your reply