We I don't have any symptoms heavily yet but for some reason I think that I'm pregnant... well first off I had sex last month exactly the day I started my period no blood was present yet it stared that night after I had already had sex what should I do ?:(

Take a pregnancy test, and if you are wanting to be pregnant ( assume you are if you are having unprotected sex, good luck)

Chances are you are not pregnant. You have to have sex during ovulation to become pregnant. And, while it's possible, it is rare to ovulate the day you start your period.

The only thing you can do now is to wait for your period. If it comes, you are not pregnant. If it does not, or is late, you need to take a HPT using first morning urine.