Bleeding

I am 3 days late and we’ve been trying for baby #2 since April. I have very regular periods, no problems with them at all. But yesterday I bled fresh red/pink blood during sex. It wasn’t a lot but enough to make the cum look light pink. That was the only time I bled. I didn’t spot during the day after sex at all. No cramps either. Today still no sign of period. I’m just wondering if anyone has ever bled a little and still ended up being pregnant?? With my first baby I never bled during sex and maybe spotted a tiny bit but that’s it.