I'm so sorry for what you're going through. I'm childfree by choice, so I can only imagine what you're going through. I'm going to send a ton of baby dust. I will share some stuff I've found helpful for the pain. But the gold standard of treatment to address fertility and pain is excision surgery.

Alternating heating pads and cold packs helps me for the pain. My pelvic floor physical therapist told me that sometimes heat worsens the inflammation, so to use cold too. I alternate Advil and Tylenol too. I like TENS units, but don't spend more than $30 because many are overpriced and it's bologna that they charge that. Warm Epsom salt baths help too. I also have pelvic floor physical therapy exercises and there’s lots of yoga for endo videos on YouTube. I also have compounded suppositories of Flexeril (muscle relaxant) and Lidocaine (numbing agent). There’s several different formulas of them, so ask your doc if you want to look into that. Some users swear by peppermint oil to the belly but it was too strong for me. I never thought to cut it with coconut oil though. This oil blend to the belly helps me.

https://www.mylola.com/products/essential-oil-b...

I’m 97% pain free since my two excision surgeries, so I’m a huge fan. I also needed lots of pelvic floor physical therapy and diet changes. Many of us need multiple therapies for healing. I’ll leave a resource list here of stuff I've found helpful over the years. Other users have said it helped too. Let me know if I can do anything.

https://www.myendometriosisteam.com/users/5d1ab...

And here's some info specifically on fertility

http://centerforendo.com/infertility-1#infertility

I got very lucky and had my first at 19. But i got pregnant a year after my first surgery and diagnosis of endometriosis. I then had a 2nd child at 22 but 6 months after she was born i had to have an emergency hysterectomy. It was horrible. I was only 23. There is a good chance you may be blessed again. If not there are other ways to have children, biological or adoptive. My wishes are with you and your hopes and dreams. Hugs