When is the first day of your cycle?

Regan • Mom to Hudson James (3/27/18), Briggs Michael (10/17/19) and Henley Rae (2/23/23) and two angels (4/2017 & 1/2022) 💕
I'm starting Clomid for the first time and need to start on day 3. I had some spotting on Thursday and then a full flow yesterday. I just don't know if the spotting counts and if I should start the Clomid today or tomorrow?

Vote below to see results!