Hi, may I answer your health queries right now ? Please type your query here...5 weeks ago I had unprotected sex, 1 week later I had very lite spotting, not enough to wear a pad, lasted 3 days, then I thought I started my period 2days later, but it only lasted 2days. Since then I get very dizzy & lite headed, nausea, very exhausted last 2days, when I eat I get very nauseated. I have taking hpt, was negitive. I have had false blood preg test with all 3 of my kids. The last week my breast have become very sore & heavey just n the last week, could I be 7 weeks pregnant?