I have never had a baby taken away. Just like in RL that baby owns it's parent. So you got carried away with some other part of the game and neglected the baby. Oh, well try again! I don't romance at home when I do the 100 baby challenge. I don't try any romance until good friends. Don is hard to romance. He has to live with a hot head. lol Yeah, it's too easy to forget the kids when romancing at home. If you have outdoor retreat you should buy her a tent and keep it in her inventory. Your Sim can place the tent anywhere to woohoo. Good luck!