hi,, i had sex with my boyfriend last night and i notice this morning that there's a little bit of blood on the tissue paper that i used, its like light red to brownish, and im using contraceptive pill and also we're having sex everyday we used to have sex like once a week, i was thinking maybe its my period but im supposed to have my period on the 1st of february., just worried what is this because it happened the first time..thanks..