Provera confusion

Virginia

So my doctor wants me to take provera to force me to have a period and then 7 days after it ends test for ovulation. Well a couple days before I started the provera I was getting some little symptoms like some nipple soreness and cramping. I was reading that some of the side effects of provera include breast soreness and vaginal discharge, but I was having that before I started. So I'm really really confused if I ovulated or if my period is about to start or what. Please someone give me some sort of guidance