Melissa Joan Hart celebrated her 36th birthday Wednesday by announcing she is pregnant with her third child.
She and musician Mark Wilkerson married in 2003. They are already parents to sons Braydon Hart, 4, and Mason Walter, 6.
No word on the baby's gender or due date.
Hart is best known for her work on TV's "Melissa & Joey," "Clarissa Explains It All" and "Sabrina, the Teenage Witch."