I'm 18 weeks pregnant with number 2. DS is 2.5 and has just comedown with chicken pox. Neither my mum or I can remember clearly whether I had it as a child. I'm seeing my midwife for a regular appointment on Saturday anyway, can I just ask her about it, or is there anything that could be done in the next 2 days that would actually make a difference (considering I don't actually have any symptoms myself)?