I was supposed to get my period 5/4 but didn't get it till 5/5. It's been really light and I've had no cramps like I usually do. And my period is pretty heavy. I've had a few light periods before. I also did miss one of my pills last week but took it later after I realized I missed. And I came down with a cold right before I was supposed to start. I am sexually active but my boyfriend and I always use protection, I'm on the pill, and he pulls out every time. Could I be pregnant or am I just over thinking it?