I know I got tested at my blood test for chicken pox (varicella) as it is one of the ones that is dangerous to contract during the first and third trimester. I wasn't immune with DD so I had the vaccination prior to getting pregnant this time and the test this time showed immunity.

I know last time I had to be very careful about exposure to anyone with chicken pox int he first and third trimester. If you have your blood test results look and see the varicella result, if not call your OB or FS.