Am i pregnant?

Gizelle

So first of all i use the everyday pill aa method of birth control. Over a month ago i had sex and the guy finished inside. A week later i had my period. Last week my period was late and it was not even red blood it was a brown discharge and very light. I took the urine pregnancy test and it gave me a positive. As soon as i saw that i went and got the blood pregnancy test and came back negative. So what should i believe? I still feel like little cramps and im bloated