Starting birth control for IVF

Lisa

I was supposed to start birth control 3-4 days after the first day of my period. My period has been so strange though since miscarriages and it was just light spotting. Anyways, does it really matter when you start birth control before <a href="https://glowing.com/glow-fertility-program">IVF</a>? As long as it is well before you ovulate and a little after you have bled? I’m worried that somehow I messed up my entire cycle by taking the pill last night.