How effective is chickenpox when you 20 weeks pregnant? im not sure if i had chicken pox when i was a baby myself and im not sure if i received a vaccine against it

Chickenpox/ preg: Check for immunity w/ blood test - the varicella antibody. if you get chickenpox can treat w/ acyclovir antiviral. If very concerned ask about acyclovir prophylactically during the 3 week incubation. Between weeks 8-20 there is a possibility of congenital chickenpox syndrome. f/u/ w/ MD https://www.marchofdimes.org/complications/chickenpox-during-pregnancy.aspx