Losing weight after having a baby is a huge challenge for new moms. Most moms just want to go back to how they looked pre-pregnancy, but it's a process that takes patience and time. Losing the post-baby weight should be a positive experience and that credits hard work and a healthy attitude and lifestyle. We tracked a few celebs to see how they remained body positive and healthy in order to achieve their post-baby body.

Kim Kardashian

After having Saint West in December 2015, Kim Kardashian West became very vocal about her weight-loss journey on social media. In May 2016, she revealed on Snapchat that after five moths, she reached her pre-baby weight of 135 pounds. 

Kim credits the Atkins diet and early morning workouts to her incredible weight-loss journey. The Atkins diet is about portion control and limiting carbohydrates. It encourages consumption of protein, fiber, and healthy fats. She documented her workouts on Snapchat, which included sprint, boxing, and strength training. Go Kim, Go. Being vocal on social media was also a great tactic that helped keep her accountable toward her post-baby weight-loss goals. 

Blake Lively

Blake Lively gave birth to her daughter James in December 2014. Shortly after, she signed to do the epic action movie, The Shallows. She knew she would have to be in in great shape for that movie so she turned to celebrity trainer Don Saladino to whip her back into shape. 

Saladino revealed to Cosmopolitan that Blake has a regular exercise regime where she trains five to six days a week for 30 - 70 minutes. Her workouts are segmented into upper body, lower body, arms, and an interval day. Blake revealed to radio hosts Kyle and Jackie 'O' Henderson that her post-baby diet included no soy or gluten. But let's be honest, Blake is always radiant — before, during, and after her pregnancy. 

Chrissy Teigen

Chrissy Teigen had an interesting approach to get her pre-baby body back — she kept active during pregnancy. Chrissy revealed to People that she worked out more while she was pregnant than when she wasn't. Game changer.

The best thing that she did to lose the post-baby weight was keep a positive mentality. She also kept a sense of humor, tweeting from the couch during the Met Gala: "I am missing it all! very busy being a 5’9″ walking boob over here!” She totally embraced it, go Chrissy.

Kourtney Kardashian

Three kids later and Kourtney Kardashian has the post-baby weight-loss journey down. After her third pregnancy, she dropped 35 pounds in five months. Of course, Kourtney is all about healthy eating and trying new recipes. Remember when she cooked human placenta? Yeah...

Kourtney's NYC-based yoga instructor revealed to E! that everything Kourtney eats is very fresh and handmade foods. For example, she makes her own roasted trail mixes using coconut oil and raw pumpkin seeds. And of course, she has a little help from her LyfeTea, #getfit. 

Jessica Alba

Jessica Alba followed a three-phase, three-month plan to ease herself back into diet and exercise after both pregnancies. She began the process by doing 20-minute workouts that strengthened her core. Next, she worked toward 40-minute cardio and strength workouts, according to Parents magazine.  

Her post-baby diet included three meals, two snacks, and at least one liter of water a day. She fueled her body with fiber-rich whole grains, salads, and lean meats. Jessica revealed to Net-a-Porter that she wore a double-corset to help get her pre-baby body back. Whoomp, there it is. 

Hilary Duff

Hilary Duff is not shy when it comes to being heard about the pressures mothers feel about losing pregnancy weight. She told US Weekly, "It takes nine months for your body to get that way and it's putting on that weight on purpose." Eight months after giving birth to her son Luca, she tweeted that she was back to a size 26.

She credits her post-baby weight-loss journey to personal trainer, Gabe Johns. Hilary did intense two-a-day workouts, plus followed the Fresh Mommy diet plan. According to US Weekly, the diet includes breakfast, fresh fruit, lunch, three snacks, dinner and one dessert for a total of 2,200 to 2,400 calories per day in a 60-day menu for $59.95 per day.

Jennifer Lopez

JLo gained 50 pounds while she was pregnant with twins. So she had an even bigger hurdle during her post-baby weight-loss journey. She took her time, making the process her own as she began training for a triathlon. She completed a 4-mile run, half-mile swim, and 18-mile bike race seven months after giving birth, according to Parents magazine.

The combination of regular training and healthy eating contributed to her overall post-baby body. By putting her focus on the triathlon, rather than losing weight, she was able to get back into shape in a positive and motivating way.