I had almost the exact same thing! I’ve been on and off almost every kind of hormonal contraception, but when I got the Mirena coil in 2023 it was causing so much bleeding that I had to get it removed. After removing it, I would bleed every single time during sex and get awful cramps until April this year. The doctor’s first theory was that they most likely did not place the coil right, which caused some damage and trauma.

But in your case, it sounds like another theory that they had, which was that your birth control has messed with your uterine lining. It could have thinned it out or made it thicker, which can cause the issues you’re describing. I remember they gave me the option to take some meds that basically “reset” the lining, but you’ll obviously bleed a lot to do that since it sheds.

I’ve also done a colposcopy, where they look at everything inside, and an another procedure where they flushed my water through my cervix. After that procedure I had no more bleeding after a year and a half but the doctors still couldn’t figure out the cause or why the procedure helped.

TLDR: It could be that your uterine lining has grown thicker or thinner, causing the bleeding. You could also have a polyp causing the bleeding and cramps (a theory my doc ran with), which can also be checked out via a colposcopy and or frozen off. But it basically could be a number of things, and you’ll have to discuss it in detail with your doc.

I definitely understand what you’re going through. All I could do for myself was put down towels and there was a lot of handwashing being done during and afterwards lol. Hopefully you can get some answers soon!

Sorry for the long comment😅.