Teen Mom 2's Kailyn Lowry is a shadow of her former self! This tattoo-covered bombshell gained a pretty significant amount of weight during her pregnancy (50 pounds, to be exact), but she's 100 percent committed to shedding her baby weight.

Since popping out her son, Lincoln Marshall Marroquin, back in November, Kailyn's been on a campaign to get fit n' healthy. Not only does this new mom breastfeed (which burns hundreds of calories a day), she's been eating well, and going to the gym regularly to get her body ready for bikini season.

We're not sure how much weight Kailyn's lost, but it looks like she's put a pretty large dent in that 50 pound surplus. This army wife looked majorly slimmed down in a recent full-body picture from her birthday party, wearing simple black leggings, a loose-fitting grey top, and a snazzy blazer. Her stomach looks almost as toned as Teen Mom 3 star Mackenzie Douthit's!

While Kailyn is beautiful at any size (she looked gorgeous right after having Lincoln), her weight loss is definitely impressive. It must be a challenge for this reality star to find time for herself when she's busy raising two kids and working, so we're definitely internet high-fiving her for going to the gym and getting results. She looks amazing!

What do you think of Kailyn's slimmed down physique? We're not sure how many more pounds this gal is looking to shed, but it looks like she's pretty near her goal weight!

Source: Instagram