I need some advice here. I've been taking birth control for 7 years now, and I get my period Every. Single. Month. Sometimes if my friends get their periods before me, I'll end up getting mine shortly after, but I'll still get it when I hit my placebo pills. However, this month, my friends got their periods a week before I was supposed to, but I didn't get my period. Then I hit my placebo pills, but I didn't get my period. I am now 5 days late, and I have taken 2 pregnancy tests, both negative. Could I be pregnant? What should I do?