So i had sex with my boyfriend and he "popped it" and i know i was supposed to be bleed but for how long?

Varies but <3 da typ: Perforating the hymen or "popping it" as you put it can cause momentary bleeding. Usually it is a small amount, & stops on it's own. It stops within 3 days in 95% of women. That being said, ur 1st intercourse could cause a menstrual period in which case bleeding could be longer. I feel u r bleeding for more than 3 days, consider an appt w/ a gynecologist. Thank for ur question on Healthtap.