I have been on the pill for a while now. I am sexually active. I missed a pill but took it the day after along with my other one. My period came a week early and was light and a bright color at first. Now it's always on time which is strange. It lasted about four to five day an stop for three. Than around the time I was suppose to get my period it came really heavy and stopped on the third day. I took a pregnancy test (5 day before my missed period one) and it was negative. And one today that was negative. I know I should but I have not use condoms regularly. I feel tired alot but I'm not sure about it all. I also spotted in the beginning of the month?