Thank you for your query,
The incubation period
virus is 10 to 21 days and usually child may develop chickenpox within this period after the exposure if she is susceptible.
She will pass the virus to others without actually getting chickenpox skin lesions.
As you had chickenpox you are immune to chickenpox but there are chances of carrying it and spreading it.
As newborns are susceptible to get varicella
easily I advise you to postpone the visit, and if the visit is compulsory and unavoidable , put masks to the mouth and nose and visit from far.
Postexposre prophylaxis vaccine
for chickenpox can be given to your child if she is not vaccinated according to her appropriateness for her age, so consult your Pediatrician
Hope I have answered your query.