You should get checked by a dermatologist. My pcp knows about the condition but the dermatologist knows so much more

That doesn't really sound like HS but it definitely could be! For me personally, my HS doesn't coordinate with my cycle. It sounds more like something hormonal that was triggered by the birth control. Have you tried switching birth control? Definitely talk to a doc or a dermatologist who knows about HS. It's scary and soo hard, I have a huge fear of doctors so I understand. But in the end, they are there to help you!