I was due to get my period around the 21st of march and on the 18th i had unprotected sex! On the 20th i had a brownish discharge and a tiny bit of blood that lasted on and off for about 2 days, there was not enough there to even fill one tampom and on the 5th of april i took a pregnancy test and it came back negative!And i have a weird feeling like someone is pushing on my stomach all the time right around where my pants sit! Do you still think there is a chance i could be pregnant?? Or could i have taken the test to early??