On Provera for lack of AF!

Emily • Hey everyone, i am a 27year old pediatric ICU nurse who is married to her high school sweetheart! Ttc baby #1. Clomid x5 IUI x2.. next stop IVF
Have any of you been on provera (progesterone)? How long after finishing the pills did AF arrive? We've been TTC and this whole missed period has put a sudden halt in things.