Anyone know how long bleeding with new and old blood is supposed to happen after intercourse? It's been almost 24 hours. Yes I've had some pain-not consistent and doesn't last long. But I have had some pain after intercourse. This is the second time after intercourse that I have bled some. I just need to know how long it has lasted for some of you? And how heavy it was for you? I'm just a big worry wart and this is my first child and I need some advice. Thank you!