Credit: Instagram

Teen Mom 2 Kailyn Lowry's body has gone through all kinds of changes in the past year — which is to be expected. After all, girlfriend just popped out a baby! Kailyn welcomed her second son, Lincoln Marshall Marroquin, into the world on November 16, and she's already eager to drop her baby weight.

It's safe to assume that Kailyn's lost around 12 pounds so far (baby + placenta + water weight), but if she gained the average amount of 35 pounds total, she still has 15 pounds to go — if not more! As you might expect, Kailyn is eager to get into shape and drop that weight, but she isn't putting pressure on herself. Not only is this mama waiting to head back to the gym, she isn't even attempting to wear her pre-pregnancy jeans!

"I'm not even trying to wear my pre pregnancy jeans until I know they'll fit," Kailyn tweeted on November 21. "No disappointment that way! Haha."

Good call! But we have a feeling Kailyn will squeeze into her pre pregnancy clothes in no time — she has a foolproof plan to lose weight thanks to a lil' something something called Insanity. "I did it before I got pregnant and lost 25," Kailyn shared. "I'll be back at it again shortly! ;)"

Kailyn won't be able to exercise until around six weeks postpartum, but check back in with Wetpaint Entertainment for updates on her progress!