My husband will be having chemo & surgery soon, and he wants to shield during it at a friend’s house, as in Sept our DS will be at school and DD at nursery. I’ll be on my own with them for about 4 months. Which will be mostly fine, but I could do with some occasional emergency or backup care. I can ask friends, but it’s a longish period and I’d like to have some other paid childcare around but not sure what. Au pair would be practical but not great for them coming into a family with this going on, maybe? Any thoughts?