First we do tests to find the cause(s) – including diminished ovarian reserve (low egg supply), hormonal issues, blocked tubes, polyps or fibroids inside the uterus, or sperm problems. Treatment depends on the results but may include fertility tablets like Clomid or letrozole with Intrauterine Inseminations (IUI) injectable medicines and IUI In Vitro Fertilization (IVF)” egg donation or embryo donation.