ASK EVE/ EVE COMMUNITY

Teja
Ok so the last time I had sex was in the middle/ end of November 2016 and I got my period after that up until now. 
My period was supposed to come on February 12th 2017. My new boyfriend of 2 months and I were going to have sex the other day but we changed our mind cause he was nervous (he's a virgin I am not) I was nervous though, too. But anyways... My period is 6 days late. Any ideas of WTF could be going on because I'm freakin out even though I haven't had sex in like 3 months. 
The only form of birth control I use is condoms but like I said I've gotten my period since November but I'm legit confused and worried because this had never happened it's only ever been two days late. <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> has never been off point ._.