Awe... poor Mina and poor you! There are some cats that just do not adjust to little ones. I know that if my foster Furbee were in a home with a baby, it would NOT be a good outcome. She's older, she's cranky and grumpy, and she nips when she decides she doesn't want to be touched.

It's a great thing that your brother can take her in. And like the previous poster said, maybe once the baby is older you could take her back, but if not, she'll still have a great home!

(((HUGS))) you are not a bad parent! You are being responsible and caring. That's commendable.