I seem to have got pregnant by mistake and in the middle of a summer of fun - late night drinking / smoking sessions etc etc. Now I'm sh*ting myself that something will be wrong with the baby. I already have a two year old who was conceived when I was behaving (sort of) like a nun. In the last few months, I've been letting my hair down and enjoying not being pregnant or breastfeeding. Oopps. Anyone else worried or can anyone reassure me ?