I am 23yrs old and on 5/3/11 I had my period and had unprotected sex. 5/17/11 to 5/23/11 and rite after that I started to bleed not heavy or like normal period it was pinkish to a brownish color and it only lasted 2/3 days and stop my period was suppose to come on 6/3/11 and now it's 6/21/11 and nothing took two pregnancy tests but didn't follow directions correctly but I feel pregnant but the test says I'm not is it because I didn't wrong I was holding it up in not laying flat.