9 days late, negative test!

I have been pretty regular with my cycles for the past 4 years. Not like me to be this late and if I am it’s normally 2-3 days at most. Iv taken 3 pregnancy tests, all negative! Have a feeling I ovulated really late too. Anyone else experience the same and end up with Flo or BFP? 🥴 so frustrating.

Also, I get sore boobs a week before my period but my boobs have been sore and sensitive until now. Very strange. And very mild cramping here and there.

I have Endo so when I get my period I literally die from the pain, I end up having to take the day off to deal with the it.