Bleeding after sex…Endo…

I have endometriosis (diagnosed with surgery and something I’ve been struggling with for about 10 years). I know I have lesions on my bowels, cervix, and other areas. The suspect I actually have it on my spinal nerves but my surgeon didn’t want to go that far with it without neurology involved and they were really just going in and trying to clean me out a bit/open up my Fallopian tubes back in 2016 when I had my first surgery. I know it was on my cervix and my GYN was able to see it during exams with his naked eye. Before my son and the surgery, pain was horrendous. After my son I started having really big issues with my back but the period pains were no longer a big issue. My back got to the point I would have trouble waking. MRI is showing nothing (it won’t show endo) and the neurologist isn’t well versed enough to help me if that’s what it is. When I got pregnant with my daughter, the symptoms of it went away again. Now, about 6 years after surgery and two kids later, my pain is not a big deal, my bleeding during period is heavy but not anything I can’t handle and never longer than 7 days, and my back flares up around ovulation but I’m usually fine. The problem I’m NOW having, is bleeding after sex. Over this past year it’s gotten worse. I’ve always had a little blood after but very little. It seems now that if we have sex anywhere close to the week before or after my period or also ovulation, I literally gush blood during sex. Tonight my husband pulled out and there was blood everywhere. Before we had intercourse, he had my so wet and there wasn’t any blood on him, me, or the sheets. I was feeling no pain and the sex itself was great. He pulled out to change position and there was so much blood we had to both shower. Like heavy period bad but without clots and it’s bright red, fresh blood. Over the past few months we noticed bleeding after more and more but tonight was the worst. I cramp terribly during ovulation and noticed it a few days ago. I’m looking for any advice at all that anyone can give. My husband is understanding and so kind about it all but I hate it. I’m always anxious during sex now and tonight was kind of scary. Will hormonal birth control help this since it worse at certain parts of my cycle? Could it make it worse? I plan to talk to my doctor but in my experience most know so little about endo it might not even be worth it. I also have no issues with masturbation. I literally only have this bleeding issue with penetration. 😭