CD2, here we go!

Chelsea
Hi everyone!
On Friday my doctor prescribed me Provera to start my cycle, Clomid 100mg for CDs 3-9, and Metformin to *hopefully* make a baby. 
My cycles are freakishly unpredictable, including random bleeding. 
Yesterday was day two/three of provera, and I had some bright red bleeding. It was light, and may have possibly stopped at some point. Do you guys think I should consider it day one? I called my doctors office, and she sounded unsure, but said to consider it CD1. 
Anyways, hoping this all works. Fx for everyone!