I was back at swimming lessons after the post partum bleeding stopped with dd2 and ds in tow. They were either in a pram or carrier and slept when ds was older the receptionist watched him.

I understand it's probably hard for you given you have said he is not your so dear ex dh, but its not a big deal and as others have said lots of mum's do it. You are lucky that she wants to be so involved and hands on.
hey thanks for this but she hasnt much of a choice ....