Hello. So my period is a week late but today when I was walking out of school and I could fEel something coming out. I got home and chceked my underwear and it was blood but it was brown and looked sorta like mucus. I'm scared but I've never had sex befor but my boyfriend and I do fool around. I wear my underwear though when he pushes up against me though. He never ejaculated near me either but it might be possible for pre cum to seep thRough my underwear? I'm not sure.