I looked after him on friday and his sibblings he is only 2 so i was getting real close changing nappies, wiping hands noses ect to top it off my kids were all sharing cups and everthing!first of all i have rang my m/w who said as i havent had chicken pox i may need a blood test so i go to my GP and nobody knew what to do!! any ways got my blood test but what will happen if i am not imune and i get it ? I am 19 weeks 