Period..oh where for art thou?

Where is it? I'm on day 3 of being late..my cycles usually vary from 28-29 days (currently on CD33) each time! 😩 I know for definite theres no baby cooking away in there as I've not had sex for nigh on 2 and a half years! 😔 (dont ask, it's a very long story!)

After running down the possibilities..yes i am a bigger lady (BMI of over 30..31 I think!), I'm slightly stressed..but who isnt with this lockdown? But I'm not stressed to the point of ripping out my hair! I just dont understand what's causing all of this?

I had a killer backache yesterday where for the first time in god knows when I had to actually take something to relieve it! 😐 I got my Hope's up thinking its on it's way.. woke up this morning drier than the sahara..not even a drop of blood, discharge...nothing 🙄

When does a missing period become a concern?

Thanks guys 🇬🇧🤞