CD32, period 4 days late

[BabyBx]

Hi everyone 👋

So I've been TTC for 3 months now, my cycles usually vary between 25-27 days. Now this cycle, I'm 4 days late, no sign of my period, no pre-period symptoms such as boobs sore, or headaches that I usually get around this time of AF. It's very very strange, I usually always get headaches even when I'm late and leading upto bleeding. But this month, NOTHING.
Is this something I should worry about?

Tests are all negative. CM is watery. Xx

Do you know when you ovulated?

I have no clue if I'm honest as this month I didn't catch my surge. I felt what i thought was ovulation pains around CD13 and CD14. So I was assuming I ovulated between these days.
Now I'm thinking if thats the case, surely I wouldn't be this late? We've DTD quite alot this month too x