Losing my v! Help!

Well on Monday me and my bf try having sex for the first time (mine not his), it hurt at the beginning so we stop. Yesterday noon we bought condoms and did it, actually yesterday was the day I lost it. It just hurt a little at the beginning but then it was good. After minutes it started hurting so we stop, everything was ok, we went to the movies and took dinner after that but today my panties have little red/maroon spots. What it is?!?!??!!!!