This is a bit tmi but this is what happened to me. I've been with my husband for 6 years now married 1 year. I've only had sex with him and when he took my virginity I bled and bled for about 4 times after then stopped. I would bleed occasionally after sex not like crazy but just spot a bit for half the day. It happened quite a few times so I went to the doctor and it turns out he tears me sometimes when we have sex because he's too big for me down there. They just told us to be careful and not have too much rough full penetration sex. I still bleed time to time but not like before.
I don't think this has anything to do with pregnancy. I would go to the doctor for it (you mentioned you went for something else but I'd go again for this and tell the whole story). Sounds like he needs to be less rough with you. It's possible you could be aggravating a tear by having sex again so soon. If it doesn't stop and you don't think it's your period I would get it checked but it is NOT pregnancy. :)
And if u do it unprotected it takes abt 2-3 wks to find out if u are so if tht ever happens wait2-3 wks and take a pregnancy test if u miss ur period
We wouldn't know ur best beat it to consult in your doctor take a test n don't stress cuz that can delay your period but if u have been using protection doubt its pregnancy but schedule a apt with your doctor n see wat she says
Somethng else is wrong with u. U have to have unprotected sex to get pregnant. U need to go to ur doctor n find out wts wrong with u they shld of dne tht whn they noticed blood