Before a clear bfp?

Okay ladies. I’ve been pregnant a total of 5 times but only delivered 4 healthy babes and lost 1 around 6 weeks or so.

Anyway with my 2nd son when I was pregnant with him back in 2020 I had such a crazy high sex drive like I wanted it constantly! And with my babe in 2021 I literally did not want or even hardly care for sex at all!!!

And the last 3-4 days I’ve wanted sex so bad like I have a very high sex drive right now and I only remember this feeling because of 2020 pregnancy.

And my last day during my fertile window I had unprotected sex which was the 30th. Is there a possibility I can get pregnant just from having sex on my last fertile day?

And seriously did anyone else have a high sex drive before a clear bfp test?