Ladies I need y’all input!

Ladies!!!! It’s been a total of 36 days since my last period and I’ve never been this late. I’m 9 days late (which make it the 36). So far I’ve had horrible headaches, fatigue, lower back soreness/pain, loss of appetite and EXTREMELY emotional hahaha. My BF and I have been having unprotected sex. I just want to know if some of y’all have been this late. Normally I’ve never missed my period or have gotten it this late in the month, I used to be irregular when I was about 13 then got them regularly. Help a girl out on your thoughts/opinions!! 😫