My husband and I are not actively trying to get pregnant, but have not been using the "pill" for about 6 months, only condoms. Generally, my periods are irregular (I.e. the last couple months,February 31st,April 2nd, May 8, have been the last few.) My LAST period started on May 8th... Today is the 21st and still nothing. I have taken 2 pregnancy tests with a negative response. How long should I wait to go to the doctor? Could I still be pregnant? Even If I'm not, should I go to the doctor if my period doesn't come soon? I don't want to overreact.