I've been taking generess fe for almost 6 months. I had unprotected sex twice: the middle of October and the end of October. My boyfriend pulled out both times. I was supposed to get my period at the end of October/beginning of November but I didn't and I still did not get it to this day, 16 days later.. I've been stressing like crazy and constantly worrying. I also have been taking my pills with water instead of chewing them the whole 6 months until about 2 weeks ago. I've never missed a pill and have been taking them around the same time every night. I've gotten a heavy period every month except for this one. Am I pregnant? Or is stress getting the best of me?