Does the progesterone only pill work for PCOS?

Hi all! I was diagnosed with PCOS a few years ago and at the time wasn't having any periods. Since they returned last year I've been having AWFUL symptoms and was recently told I have a hormonal imbalance in that my progesterone is far too low and my estrogen is normal (so I have estrogen dominance).

Since I suffer with chronic migraines( which have been much worse since my periods returned) my Gynae has put me on the progesterone only pill rather than the combined pill.

I've read some mixed things about it's effectiveness for PCOS, and I'm not sure if it's being prescribed to help the hormonal imbalance but my Gynae team is so dismissive and I'm finding it hard to get help with these questions!

Please if anyone's tried it can you let me know your experience?

Thank you!!

Rosy