I need my AF!!!!

I've been really stressed lately and no matter why I try my period won't start. It's so annoying!!! I'm here ready with my opk kit and my calendar ready to go but this period won't come! It's so freaking frustrating and I'm really excited as this is our first month ever TTC. I know I just need to relax but it's been a month and something since my last period. Sep 9-13.☹️ Anyone in the same boat?