I have short (25 day) cycles with early recruitment of follicles, and a history of lead follicles and asynchronous growth during previous IVF.

My dr instructed me to take 21 days BC before beginning my IVF cycle with 3 days Decapeptyl, followed by Gonal F from 3rd day onwards. Due to a miscommunication, I only started BC on day 6 of my cycle, instead of day 1. I was told this was ok, but I am concerned I have messed up my cycle.

Could you please advise if I am more at risk of developing dominant follicles due to starting the BC late?

Thank you for your insight.