Kim Kardashian West is bouncing right back into shape after the birth of her son, Saint West, on December 5, 2015.

Kim said she gained about 52 pounds during her pregnancy, which put her at a total of 190 pounds by her third trimester, as reported by Us Weekly.

Now the reality star has just recently revealed that she has "42 lbs down and 28 to go!" today on her self-titled app.

No one is stopping this hot momma from getting her banging bod back. E! News pointed out that Kim started the Atkins diet in January to get back into shape

"Teaming up w/ @AtkinsInsider because it works for me! So much variety on #Atkins40 and Harvest Trail Bars = YUM," she tweeted. "I'm so excited! I'm 30 lbs down today but 40 to go! I'm so focused."

Kim admitted that this would be a challenge, but she was up for it.

"I gained 60lbs during my pregnancy but have been an extra 10 lbs up for the last few years so it's time to really get to my goal...This is going to be soooo fucking hard but I can do it and I can't wait to share it all with you! #BeastMode #WhosWithMe ?!?!?!" Kim tweeted.

Way to go, Kim. Looks like that hard work is paying off!