Success Stories with Stage 3/4 Endo?

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Please share any success stories. We have been ttc for going on 4 years now. Everyone I know that was struggling to conceive had now either conceived or adopted, and now my younger brother and his wife are having a baby. I had laparoscopic surgery last year, did 3 iuis, and now are taking a break because our doctor wants us to do <a href="https://glowing.com/glow-fertility-program">IVF</a> next but it's going to be $15,000 and we cannot afford that right now. My endometriosis has already started coming back, too. I'll be 32 next week. Is there any hope? We really want our own biological children.