Bleeding again after the first time

EDIT: So....The first time we did it I was freaking out bc of course it was my first time and I wasn’t sure if a condom would hold the cum inside, but anyways, As I was freaking out he suggested going and buying me plan b so I wouldn’t worry and just in case. Could the plan b be what is causing me to bleed even days after intercourse?

Okay, I recently had sex again for the second time with the same person and I bled again...why would that happen?