That depends on your age. The younger you are, the more antral follicles...generally.
WHAT IS THE NORMAL AMOUNT OF FOLLICLES ON FIRST U/S ANY ONE NOW?
so i had my u/s this am it showed 11 follicles so far and 1 small cyst. i will start follistem fri. i told them about my cycle this morning was showing signs and now nothing, never thought i would want something to start so bad all the way.
I had the same question- I was told it was when flow started- not just spotting. Hope this helps!
The first day of normal flow is generally considered day 1.