Hi me and my bf had unprotected sex last month before my period and due to my work schedule I wasn t able to visit the clinic until the following Monday which was the fifth day afterwards after I took the pill I had sore breast, hot flashes and lower back pain then I got what I thought was my period which was extremely lighter then normal and brown. Usually my period last about 6or 7 days this last time it was about 4 to 5 pasty, dark brown, and some days wouldn t bleed at all then spot the next. I took a test (a cheap 99 cent store one) and it said negative. This month it s time for me to have my period again and I have no signs of it coming. No bloating, salt craving, mood swing, sharp pains...nothing. I m not pregnant right??