I've just gone on FB and seen a post from the mum of another child in DS1's class at school.
Her DC has come out in spots since home time today, and they're pretty sure it's chicken pox.
I'm about 16 weeks pregnant and a bit worried now. This child will have been contagious for a few days, and DS1 - the whole class really - is bound to have been exposed to this child. There's probably going to be loads of them coming down with it in the next few weeks even if DS1 hasn't already caught it.
So... how worried do I need to be? I had chicken pox when I was 6 or 7, but someone told me you can catch it twice. DS1 had chicken pox as a baby, but he had such a mild case that I have no confidence at all in him being immune.