Sheldon and Amy will be spending their first Valentine's Day since they got back together in the next episode of "The Big Bang Theory" season 9 titled "The Valentino Submergence." That being said, the couple will make sure it is one for the books.

The pair will host a Valentine's Day special of their podcast show "Fun with Flags" but as fans would expect, it does not go as planned. [Spoiler Alert!] The podcast quickly becomes a love advice show where Amy helps out troubled lovers over the phone.

Sheldon is not at all happy about it but it seems like he can't do anything about it anyway as more and more callers seek advice from Amy. In fact, some of the callers end up being the people they know.

The upcoming "The Big Bang Theory" season 9 installment also brings trouble to Raj and Emily. According to spoilers, the former decides to break up with the latter to pursue Claire, only to realize that the new girl already has a boyfriend.

Meanwhile, Leonard and Penny spend the special day trying to secure a table in a classy restaurant but end up thinking about how they can come to terms about getting older.

The biggest chunk of the upcoming "The Big Bang Theory" season 9 installment involves Howard and Bernadette. The synopsis hints that they will see a big surprise in their hot tub. As it turns out, it is really Bernadette who has a bigger bombshell to drop.

As it turns out, Bernadette is pregnant but she decides to tell Howard at a later time after he hurt himself trying to get hold of what is revealed to be a bunny floating on their hot tub.

"The Big Bang Theory" season 9 episode 15 "The Valentino Submergence" airs Feb. 11 on CBS.