I would not take her if she is doing fine but if it makes you feel better then you should. It depends on your pediatrician how they will respond, ours is great and would never make us feel bad about bringing her in. She is already 6mo at that age most of the babies stand in those play center things and I'm sure most of them end up fine. I'm not sure how much research there is to back it up though. She is your baby and you can make your own parental choices, not MIL. I have a great MIL and I'm sure some things she would do differently.
