Baby's after an abortion Angels and Rainbows.

Jmbk

My niece is pregnant after a miscarriage. she has been speaking with one of her friends about her Angel baby' and her "Rainbow baby"and explaining what those terms mean, apparently the friend had an abortion for medical reasons (the abortion was not medically necessary) but I believe it was for mental health reasons? (Not 100% sure) would the baby be considered an Angel baby and would her next child be a rainbow baby? I looked the topic up but haven't seen it on here and I don't know because I've never been in the situation

I welcome all comments but please be respectful of others opinions.I know that people will have differing opinions and beliefs that's fine but please don't be nasty.