Baby #3 is on its way for Leah Messer -- and she's already showing!
The "Teen Mom 2" star announced her pregnancy last week and wasted no time debuting her baby bump to the world.
Messer, 20, took 2-year-old twin daughters Ali and Aleeah to the park near her home in West Virginia, where she showed off her growing belly in a brown t-shirt.
It's crazy how big her little girls have gotten!
This will be the first child for Leah and new husband Jeremy Calvert, who tied the knot in April. She reportedly suffered a miscarriage with the couple's first pregnancy back in January.
Leah's two girls are from her relationship with ex-husband Corey Simms.
See more expecting stars in the gallery above.