Late.

Hey so this is really weird for me but I’m not really freaking out or stressing over it just like what is going on? So I’m in the Marine Corps and in January on the 16th we left for an op in Bridgeport so from NC to Cali and then we flew up to Alaska after about three and a half weeks of being in Cali. Last Monday we flew back straight from Alaska to NC and while I was away I got my period while I was in the mountains in Cali for about four to five days it wasn’t really heavy more light/medium. In Alaska I got it again in February for about five days and it was light. I was expecting to get my period 7 days ago now and I’m just confused on why I have not gotten it. I’m never late always on time so it’s really strange. And the last time my boyfriend and I had sec was the day prior to me leave. Also I’m not stressed out my diet really hasn’t changed I’m used to switching it up all the time. I don’t workout any different than normal.