Headache question?

I had chronic headaches before getting pregnant. Once I got pregnant, they stopped completely for the last 8 months.

Now in my 9th month, they’re picking up slowly again. Really mild, maybe a 1 or 2 out of 10, not bad enough to take anything but noticeable.

Blood pressure has been fine and drinking tons of water so not related to that.

Has anyone else noticed a change in headaches as we get towards the end?? Not ready for them to come back 😫