Regarding my menstrual cycle. I ve been on birth control since 2004. In December 2013 I finally got off. I am sexually active and we haven t exactly been safe. HOWEVER, I ve been getting my period. This month s period only lasted about a day and some change (April 29th in the PM through May 1st AM or at least April 30th overnight). I m concerned b/c this never happened before. I ve taken two pregnancy tests and both came back negative. The tests were early response. I took one about 2 days before my period and the other on May 1st. Help?