Help.. so I had sex like 2 weeks ago and he got off in me I took the plan b 2 days later because it says up to 72 hours after he ejaculates you have to take it well Monday I went and had a Pap smear done and they swabbed my cervix for stds it is now Saturday so I don’t think this is from that and it isn’t just spotting it is like a real period but dark brown and today I had a blood clot in it as well like i said my period isn’t due until the 15th sooo what could this be??