Credit: Instagram

The ladies of Teen Mom just can't stop, won't stop popping out babies. Not only did Teen Mom 2's Leah Messer welcome another love child to the world earlier this year, her co-star Kailyn Lowry is currently pregnant and due to pop in a few months! But even crazier? New kid on the block, Mackenzie Douthit, is baking another baby in her lady oven, and she's only 18 years old!

Credit: Instagram

Mackenzie and her husband, Josh McKee, decided to fast track their second pregnancy due to Mackenzie's health problems (she has Type 1 diabetes), and she's currently in her second trimester.

Thanks to Mackenzie's tiny frame, we can barely tell she's pregnant despite the fact that she's over four months along. The good news? Home girl took it to Instagram to share a picture of her bare baby bump in all its glory.

"18th week," Mackenzie posted along with the picture. "For everyone asking how big I am.... not going to post these often but here ya go. Yes i sleep in joshes shorts."

Wow, Mackenzie looks amazing! And for those of you wondering why she's on crutches, this Southern belle recently broke her foot after suffering an epic fall.

What do you think of Mackenzie's bare bump? Adorable, right?  We can't wait to meet her baby girl!

Source: Instagram