She does not know about JL's situation. Even though she fully understands that "Zoey" is just a character that JL plays, my husband and I felt that as a second grader she didn't have the maturity to fully understand JL's situation. Plus, it was JL who got pregnant, not "Zoey."
I did get a chance to talk to some pre-teen girls about what they thought about JL's situation. They were all pretty shocked and disappointed in JL and felt that she should have used better judgment. However, they still liked JL and were going to continue to watch her show. JL also scored a nomination for a Kids Choice Award this year and I'm certain that many of the kids who voted knew she was pregnant.
I'm glad that JL had a healthy baby and wish her well.