My cycle is all messed up

Hi community!

Does anyone else have experience with having a really messed up cycle schedule, but no doctor ever determining that anything is wrong?

My period is ALWAYS late. It's 32,33,35, even longer, days apart. Never the same schedule. This time it's like 45 days since my last one, but I took a pregnancy test and it was negative. I've gone through that countless times now. I will definitely take a second one in a few days to be sure.

I've wasted so much money on pregnancy tests. I've talked to three different doctors about this, and none of them ever seemed concerned whatsoever about this, but I would really really like to get my regularity back. I eat a healthy diet, and always make sure to get all the nutrients I need, and also verify everything's good through yearly blood draws in a lab.

From age 13 to 20, it was almost always 28 days on the mark. Like, perfectly consistent. I had an abortion 3 years ago (please don't judge....), and it seems that a few months after that is when it started being very irregular (I'm 23 now). I've gotten papsmears, ultrasounds, tests, you name it, and all that doctors have done is brush it off like it's no big deal, even when I communicate that it is a big deal to me, they are very quick to dismiss it.

Please let me know if you've ever experienced anything that relates to this, and what you think I should do next.

Thank you ❤️