Any Comments Or Suggestions to Calm My Nerves?

Hey guys , i’m kind of nervous right now. I’m two week late on my period. I usually get it the 28th of every month. I do not think i’m pregnant though. I have no signs at all of being so. Also, two weeks ago, I was working on a huge project for a huge school competion (i had to stay at a hotel and compete the next morning. There was a lot of work last minute which was very very stressful) that week, my cell phone also got stolen and I got into a car accident. All in one week. The whole week was so up and down and it was the most stressfull week of my life. I was suppose to get my period that friday (28th) i’m taking a hpt friday. I’ve had every sign of getting my period. Every month I get emotional, crave satly foods, acne break out, and I get vaginal pains and cramps. And i’ve gotten all the signs, except my period. I’m 80% sure im missing it due to stress. Anyone have any comments?