I'm on my second month using the mini pill. We had sex near ovulation time but I took all my pills correctly. My period actually came early last cycle by almost a week. So technically maybe I'm not late? I'm just going by my last period. Period is usually 27 days, and my last one was 21 days. I've read so much about this and I'm confused. Could I just miss a period because it's only my second month of this birth control? I feel like if I was pregnant I'd have a faint positive by now, based on the only time we had sex. Not even a hint of a line. I figured I'll take some more tests if I don't get it soon. Should I be worried or is this normal?