My period is already late by 6 days it was supposed to come on December 25th. But it didn’t came. I’ve been recently sexually active with my boyfriend. The last time we had sex was December 17 and December 8. We used condoms and I know the condom didn’t break. When we had sex December 8 I was in my fertile days. We used protection and did it for a long time. My periods are irregular so I’m not worried it’s normal for me to get my periods late, but now that I’m sexually active I’m kind of getting worried because I don’t want an unplanned pregnancy.