Gonal f and mensus

I started gonal f yesterday and I also started what seems to be a very late mensus after provera, my baseline was ok and my lining was thin I spotted when I was suppose to have one so assumed that was it... I’m sure my doctors wouldn’t have started me if I wasn’t good to go just didn’t know I would be bleeding. Last injection tomorrow then US Monday to prepare for iui... any similar stories? Thanks