The girls from Teen Mom OG and Teen Mom 2 have changed quite a bit since they were first introduced to us on 16 and Pregnant. They've grown up right before our eyes — specifically Jenelle Evans, who is now a proud mother-of-three.

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Just hangin' out. 🌸💋 #MommyandMe

A post shared by Jenelle Eason (@j_evans1219) on

The 25-year-old has a lot on her plate these days. She's currently working on releasing a tell-all while simultaneously decorating her amazing new house.

But she's not the only star from the franchise who's making headlines these days. From Kailyn Lowry’s incredible body transformation to Farrah Abraham’s many business endeavors, it's safe to say these girls aren't sitting still!

MORE: Meet Jenelle Evans’ Sister Ashleigh!

teen mom cast

These ladies have gone through makeups and breakups, plenty of kids, and tons of drama. So it's time to take a walk down memory lane and see what our favorite reality stars looked like when they were just beginning to get famous!

Whose transformation do you think is the most drastic?

Scroll through the gallery below to see what the girls of Teen Mom looked like on their episode of 16 and pregnant!