Please don’t judge me but I need opinions

I just found out I am pregnant after losing 3 babies since 2018. My lmp was nov 27 mind you I had two in the month of November due to depo. My period was due on the 28 but I spotted on the 29th took a test on the 31st with a bfp. My dilemma is when is it possible that I conceived. I had protect sex on the 11 with someone but I’ve had unprotected sex with someone else that weekend and every weekend since then. Wouldn’t I had to ovulate late if I implanted late???? I need help I don’t care if you judge, I’m single and been through a helluva a lot.