I just did home pregnancy test and its negative my last period were february 19?

Wait a week: If you have an average 29 day cycle your menses wouldn't start until 3/20. While some home tests say they can detect pregnancy this early, there's a good chance they'll be negative this early even if you are really pregnant. If you wait a few days after your period is due and your period hasn't started then the test should be more accurate: http://www.Babycenter.Com/0_home-pregnancy-tests_2029.Bc.