[PorterBailey]

What's funny about this episode was that the creators were trying to keep the ending a secret, so that they would surprise the viewers with Mr. Baldwin's labor. But on the night "Labor of Love" premiered, during a commercial break Disney Channel showed a promo about the next episode of Fish Hooks, which showed Mr. Baldwin pairing up his students and assigning each group one of his babies to look after, which pretty much gave the whole ending of "Labor of Love" away!

They actually spoiled it from the second it started. They had the family from "Dog with a Blog" introducing each new episode that night, and they said "In this episode of Fish Hooks, Mr. Baldwin is about to give birth to his seahorse babies."
Um...okay... :-/
It's a good thing I already knew what the episode was about.