I've had sex many times with my ex boyfriend and I've had no problems but now I'm dating someone new and all 3 times I've had sex with him I've bled and the last time it was a lot of blood and I honestly thought my period came early but I haven't bled since. My ex was bigger then the guy I'm dating now but he's more rough... even when I lost my virginity I didn't bleed... so can someone please help me understand what's happening??!