Last month my period came 3 days early while I was taking the active pills of my bc. It was heavier and longer than normal, and now this month I haven't had my period. I'm on the pill and take it every day at the same time except on weekends, give or take a few hours later than through the week. My bf and I had unprotected sex in the beginning of may, using the pull out method. I know, not the best form of birth control. I took a pregnancy test last week and it was negative. I took another one yesterday, and it was negative. According to glows prediction, I should've had my period last week, and still nothing. Should I trust the hpt, or get a blood test done? Not sure if last month's early, longer, and heavier period messed me up or if it's been stress!