Advice please

Me and BF Had protected sex with condom like as usual, I have never felt anything when he is ejaculating (besides throbbing) because of the condom but last night I felt when he did I felt the warmth it felt different really warm we didn’t notice any breaks and the condom still had sperm but is it possible some leak without us noticing? he didn’t feel anything off but it felt different to me( it’s also very close to my fertile window) ovulation is 2 days away according to app, should I be worried about pregnancy? Is there a need for a plan B or should I be good?