Even though Khloe Kardashian has three other sisters, it appears that she's really missing her baby sister, Kylie Jenner, right now.

On Friday, March 23, the expectant mom took to Instagram to share a throwback photo of herself and Jenner as they pose with Snapchat's heart filter.

 I miss you!!! (We were both blonde and pregnant here) A post shared by  Khloé (@khloekardashian) on Mar 23, 2018 at 5:39am PDT

"I miss you!!! (We were both blonde and pregnant here)," Kardashian labeled the photo.

Khloe And Kylie's Baby Bumps

The Good American designer is probably having sister withdrawals as she and Jenner were pregnant at the same time.

As per reports, the 20-year-old lip kit maven waited until she gave birth to her daughter, Stormi Webster, to confirm that she was with child. Stormi is the first child for Jenner and her boyfriend, rapper Travis Scott. Jenner took to Instagram to reveal that her baby girl arrived on Feb. 1. She also apologized to her fans for keeping her pregnancy a secret.

"My pregnancy was one I chose to prepare for this role of a lifetime in the most positive, stress-free, and healthy way I knew how," the reality star wrote.

Following her pregnancy announcement, Kardashian congratulated her little sister by sharing a photo of the two as they showed off their baby bumps.

"I'll miss you bumping along with me. Never in a million years did I think we would do this together but it's been that much more special because of it," Kardashian captioned the photo.

Khloe's Pregnancy

As previously reported, Kardashian is staying in Cleveland, Ohio until she gives birth to her daughter. The mother-to be wants to be closer to her boyfriend, Tristan Thompson, since he plays for the Cleveland Cavaliers. According to People, Kardashian's family will fly in to be with her when it's baby time. 

"Khloe is in Cleveland and plans to stay there until the baby is born. She is too far along to fly back and forth," the source stated.

Unlike Jenner, Kardashian decided to confirm her pregnancy three months in. The Strong Looks Better Naked author also took to Instagram to reveal that she was with child. The denim designer shared a black and white photo of her and Thompson's hands around her growing belly.

Kardashian is presumed to expect her first child sometime in April.

Kardashian's baby girl will make the third girl for the Kardashian-Jenner this year as Kylie gave birth to Stormi and Kim Kardashian welcomed Chicago West via surrogate on Jan. 15.