Pregnant before having period?

I have read that some women get pregnant before they even get a period after coming off BC. I know that your cycle can be irregular after coming off and you may not know when you ovulate for sure.

If you conceived before having a period, when did you get your BFP?(CD)

Just trying to see when you ladies might have ovulated based on your bfp’s. I guess you could get pregnant the first time you ovulate after the pill, even if that first ovulation doesn’t happen for a month or two. Just wondering. Baby dust to all the other ladies waiting on their BFP!