Are you sitting comfortably?
Dh's cousin gave birth as a teenager in the 60s. It was hushed up and the daughter was given up for adoption. Dh didn't know about this until the cousin told us both and showed photos, after the daughter had made contact with her in the early 80s. To my noises of concern the cousin laughed it off and said, oh I've never been maternal, as if giving away her baby had been no trouble at all.
Last month we saw same cousin again at a family do. She's over 60 now. She still has some contact with the daughter who has 3 children of her own. She had rather a lot to drink and mentioned to me that a certain older member of the family had said to her soon after the adoption: "Never mind, these things are for the best." She had clearly never forgotten or forgiven this comment. It made it clear to me that she did mind, she minded very much, even though she wouldn't admit it. She had never married, btw, or had further children.
It just made me feel Mamatres, when I read your story, that the whole business of having a baby in a socially unacceptable context and then giving it away for adoption is deeply scarring, and the emotions of such mothers can be complex. I am sure no two cases are the same, either.