Should I tell them?

Lisa • My SO and I are expecting our first baby girl February 1, 2017...this is our rainbow baby!!! I am 19 years old and I am looking for mommies around my age to talk to and or become close friends with!
I am currently looking for a job and I am 21 weeks pregnant. If I get called for an interview should I let them know that I'm pregnant or should I wait until I get the job?