birth mother

Robert never knew his birth mother as he was only four months old at the time.

"Then the hospital is going to be left with the baby and the birth mother."

The birth mother made a choice in giving up the child.

The birth mother is given time to get her life together.

He asked his birth mother to move there with him, which she did.

I looked up to see the face of a young woman who was clearly the birth mother's sister.

His birth mother gave him up the day he was born.

Just like you, she was trying to find her birth mother.

She had spent a month trying to find her birth mother.

I found out later that my birth mother killed herself.