spotting/ breakthrough bleed

megan • girl power
so i just started the pill im on micrgestin, and ive been lighting bleeding for a few hours of everyday and my discharge is always red/brown. i read this is normal but i also had unprotected sex recently (he didnt finish inside but still) so im also scared it could be pregnancy spotting. this has been happening everyday for a week, is that normal for pregnancy?? any suggestions which??