bleeding

Shelly • We lost our first child at 8 weeks. Found out about a year later we were pregnant with a baby girl. She is now 4. We right before she turned 3 we found out we were pregnant with our son who is now almost 2. Just found out we are expecting baby #3 (Technic
Has anybody ever experienced light bleeding after sex? I have a few times and I'm wondering what it means? Should I be concerned or not??