I missed my birth control pill on a Tuesday, so I took it along with my Wednesdays pill on Wednesday. This caused me to spot a little. Then on Friday, I had unprotected sex and a couple hours after I started having a dark red/brownish color of blood. Not as heavy as a period, but enough to wear a panty liner. It s Sunday now, and I am still bleeding, but it s more brownish. The sex was very deep, so could it have been from my cervix being hit?