Im 17, going to be a senior in highschool thdis fall, im scared out of my mind. Ihad sex almost four weeks ago (it will be four weeks tomorrow). He came, and the condom broke. I'm two days late for my period. This past week I've been nauseous and I can't keep good down. Oh and the day we had sex was the day my period ended. Does it sound like I'm pregnant to you? When should I take a test?