Credit: Instagram

Teen Mom 3's Mackenzie Douthit has finally announced the gender of her about-to-arrive second child. Get excited!

On September 14, Mackenzie posted a Vine video to reveal that she and husband Josh McKee are expecting  drumroll, please! — a baby girl. Hooray! Mackenzie and Josh are already parents to two-year-old son Gannon. 

"Find out what I'm having!" Mackenzie exclaims in the video. Then, we see Josh slice open a cake, which shows the color pink. A girl it is!

Apparently, Mackenzie already knew what they were having, but Josh was in the dark. "I knew, but Josh had no clue," Mackenzie told a Twitter follower shortly after the video reveal. 

She also shared this adorable tweet:

So sweet! We love that they're now going to have one of each.

Mackenzie and Josh are having quite a memorable summer. They tied the knot at a country-themed wedding on August 17 in Kansas, and she is now four months pregnant. 

Congrats to the happy family!

Source: Vine, Twitter