Hello everybody. I've been taking birth control pills for almost a year already and I've never missed a period. It usually comes right on time on the 28th day. This month, it was supposed to come on Friday May 13th, however it never came. I had sex with my boyfriend twice in this period of time since my last period. According to a period tracker app I have on my phone, the last day I was ovulating was Sunday May 1 and we had sex on Monday May 2 and Saturday May 10. Now I have learned that when I'm on the pill I won't ovulate but I still try to be careful. All I had was a small stain on Saturday which was kind of brownish and then again yesterday. I started a new pack of pills yesterday after the went to the bathroom and saw the small brownish stain. Can somebody help me out? I'm freaking out!