VIDEO: Sneak Peek - A Big Secret Revealed on ABC Family's SWITCHED AT BIRTH

Related: SWITCHED AT BIRTH, ABC Family, previews & teasers

In an all-new episode of the ABC Family drama SWITCHED AT BIRTH, Angelo tells Regina about the baby. Regina is shocked when Angelo tells her about Lana and the baby. After convincing her parents to let her attend Carlton School for the Deaf, Bay discovers that the transition is not as easy as she had expected.

Meanwhile, Toby and Nikki's (guest star Cassi Thomson, "Big Love") relationship hits a bump when Emmett sees something from Nikki's past that makes Toby question exactly who this girl is.

The episode airs Monday, January 14 at 8:00PM ET/PT on ABC Family. Get a sneak peek below!

"Switched at Birth" is executive-produced by Lizzy Weiss ("Blue Crush"), Paul Stupin ("Make It or Break It"), Becky Hartman Edwards ("Parenthood") and John Ziffren ("Melissa & Joey," "Make It or Break It"). The series stars Katie Leclerc as Daphne Vasquez; Vanessa Marano ("Gilmore Girls") as Bay Kennish; Constance Marie ("George Lopez") as Regina Vasquez; D.W. Moffett ("Friday Night Lights") as John Kennish; Lea Thompson ("Back to the Future," "Caroline in the City") as Kathryn Kennish; Lucas Grabeel ("High School Musical") as Toby Kennish; Sean Berdy as Emmett Bledsoe; and Gilles Marini ("Brothers and Sisters") as Angelo Sorrento with guest star Marlee Matlin ("The West Wing").

Part of the Disney/ABC Television Group, ABC Family is distributed in over 97 million homes. ABC Family features programming reflecting today's families, entertaining and connecting with adults through relatable programming about today's relationships - told with a mix of diversity, passion, humor and heart. ABC Family's programming is a combination of network defining original series and original movies, quality acquired series and blockbuster theatricals. Emmy(r) Award-winning ABCFamily.com provides a variety of interactive entertainment and community features, from rich, fan-centric programming - including blogs, viewing parties, webisodes, full episodes of the network's hit programming, along with sneak peek exclusive previews and behind-the-scenes clips. ABC Family is also the destination for annual Holiday events with "13 Nights of Halloween" and "25 Days of Christmas." ABC Family. A New Kind of Family.