'Switched at Birth' season 4: Bay slides after breakup with Emmett; Lily and Toby face the prospect of parenthood

The second half of "Switched at Birth" dumped a whole heap of drama on fans, probably more so than usual.
The premiere episode quickly established that Bay (Vanessa Marano) is not doing so well after her breakup with Emmett and if the rumors are true, it won't be getting any better any time soon. As a matter of fact, showrunner, Lizzy Weiss, has admitted to TVLine that "Bay is not coping" at all.
"I wanted to be real to this whole heartache of being broken up with unexpectedly - especially at that age, but at any age – [and] dive into the sadness and the hurt and confusion and the replaying in your head again and again of, 'What happened? What went wrong? What could I have done differently," Weiss explains.
But while Bay might spiral out of control, Emmett (Sean Berdy) will be having an easier time dealing with the breakup. However, he won't have his long-time friend, Daphne (Katie Leclerc), on his corner this time as she stands with her sister on the issue, bewildered at how her friend treated her sister.
Like Bay, Daphne also can't seem to catch a break when it comes to relationship matters. Her relationship with the school's resident bad boy, Mingo (Adam Hagenbuch), has immediately hit a wall when Travis and Iris voiced their dislike. Surprisingly, Mingo picks up on their hostility and used that as an excuse to leave Daphne at the club where Toby is working as a DJ.
Ever since it's been revealed that one character in the show is pregnant, fans have been eagerly anticipating and speculating as to who it could be. As it turns out, Lily (Rachel Shenton) is pregnant. What makes the situation more surreal, aside from the fact that Toby (Lucas Grabeel) and Lily ended their relationship badly, was the news that the baby is positive for Down's syndrome.
It's clear by the end of "Switched at Birth's" premiere episode that Bay, Daphne and Toby have some major growing up to do this season, especially since the adults are not exactly in a position to hold their hands right now.