My bodies no good... My eggs are no good

I'm extremely emotional rn. Thank you for anyone who has been following this kind of journey of mine. Me and my husband have wanted a baby for a long time but it's been miscarriage after miscarriage. I know it's me. I always knew it was mean mainly because my husband's sperm did successfully make a child. He has a girl he's best friends with and her husband is transgender. 10 years ago my husband agreed to be their sperm donor and first insemination she was pregnant. And that's how they made my husband's nephew. His best friend offered to be out surrogate because we were having trouble and my husband had helped her make a family so she wants to do the same for us. After a lot of thinking and talking we realized this may have been fate. My husband helped her so maybe she was meant to help us. We have met with lawyers and already drew up our contacts. Things however are even more depressing for me because at the fertility clinic I found out my body can't hold a pregnancy. I already figured that, but also my eggs are no good... So my body is no good and now my eggs are no good. We still want a baby so we have 2 options. Donor egg, or use her egg. In our state when it comes to using a surrogates egg before you even schedule anything you get her to sign a paper stating she is donating the egg to us and after that her egg is treated as a donor egg. Pretty simple. I just don't know. Me and my husband are looking at both options. Using her egg would in actuality be cheaper because we wouldn't have to basically do IVF to make the embryo. We could do IUI, or to spend even less money we could purchase a home insemination kit and her and her husband can do a home insemination. I just really want some opinions. I knew this journal would be emotional but I've cried pretty much daily. She said she's fine with either option but I'm just not sure and really upset my body is so broken I can't even use my eggs...