Birth control before IVFn

Elisha • TTC for 4 years. 2 MC, 3 tries at IVF all unsuccesdful- endometriosis and unexplained infertility
Husband and inhave been trying for over 2 years. I MC, endo and have tried 7 medicated cycles including 2 <a href="">IUI</a>'s. Since learning i only have a follicle reserve of 3 on each side ( was told 5-6 was normal) husband and i have decided to move to <a href="">IVF</a>. We were told by the dr that i first would need to be put on birth control... anyone else going through the <a href="">IVF</a> process been put on birth control before starting everything?