HELP! I have irregular periods, but always get a period at lease once a month sometimes twice (Once at the beginning and once at the end) this month I haven't gotten a period at all. My boyfriend likes to have alot of sex, at least once a day if not more. Anyways I took a pregnancy test because its the 30th and I still haven't had a period. Luckily it came back negative as we are in no position to have children. But still no period. Is there anyway I could still get a false negative test result even if I tested AFTER a missed period?