Late period

Chy

I am 6 days late on my period, I have only gotten negative pregnancy tests. I have a really irregular period usually but the last 6+months have been pretty regular.

What could cause this? I’m not overly stressed or stressed any more than usual. I’ve maintained weight.

How am I supposed to track if I’m so irregular? I don’t want to have to take a daily ovulation test. My doctor doesn’t help. She just keeps saying “all women are different”

I feel like I’m hitting a wall.