Actually the child in question had a b/t yesterday. If he has it then I panic!
Realistically the rate of transmission is low from adult to child and then it's likely the pregnancy won't be affected... But the risk is there.

It is a very mild illness usually in kiddies - in pregnant women it causes miscarriage, stillbirth due to hydrops... It can be very nasty...

Anyway I am jsut surrounding myself with positive thought and praying that he has got something other than this!