I've been taking loestrin fe 24, which is a birth control that has 4 iron placebo pills, instead of the usual 7, for a lighter and shorter period. I took the 2nd of out 4 placebo pills today, and I still haven't gotten my period. I was wondering, is it possible to miss a period if you became pregnant 2 days earlier?

That was the last time I had sex, it was without a condom, but i've taken the pill everyday on time for the past four weeks.

Also, this is my first month of birth control if that matters.

I've heard of people missing their period the 1st month due to the pills, so is this also a possibility?