Would you be a surrogate for a close family member?

My Aunt had to have an ovarian hysterectomy earlier this year due to stage 4 endometriosis. She froze eggs a few years ago when she was first diagnosed. She asked the only sister who still had her uterus to surrogate for her a few years back but since the sister lived across the country it wasn't ideal and didn't work out. I was still in high school at this time btw. I have since watched her struggle emotionally as her son grew older and would ask for a brother. When I became pregnant I could see how much it hurt her and decided I would distance myself for the pregnancy to make it easier on her. At my shower she made a comment about finding a surrogate and my mother (her older sister) told me that my Aunt was going to ask me after my son is born and I have recovered if I would be get surrogate.

I would love to see my Aunt happy but I have a few concerns. I have a history of MC's so I don't want to 'waste' her eggs or get her hopes up and lose the pregnancy. I also have become extremely bonded and attached with my son through my pregnancy and I don't know if I would be able to separate myself emotionally from the child. Even though s/he would not be biologically mine i think I would feel attached after carrying. Also my family is super close so I would see this child grow up and I feel like that would hurt as well, knowing I carried and gave birth to s/he but s/he isn't my child.

I guess it might not be super controversial but what do you ladies think about this?