Kim Kardashian Says Saint West's Early Morning Breastfeeding Schedule Is Making Her 'Delirious'

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The mother of two tweeted that her 1-month-old's 4 a.m. nursing 'really kills me.'

Kim Kardashian is having a rough time with her baby's breastfeeding schedule.

The new mom took to Twitter early Monday morning to open up about the challenges of nursing her 1-month-old son, Saint.

"This 4 am feeding really kills me," Kim tweeted. "I'm like delirious."

WATCH: Kim Kardashian Shares Cute Photo of North and Saint Holding Hands

A few hours earlier, Kim seemed to be feeling good. She wrote that Saint and her two-year-old daughter, North, were already "bathed, fed & asleep" by 8:30 at night, and she didn't "even know what 2 do with this free time."

Apparently, she could have used some of the free time for sleep, because she was clearly bound to have a long night of breastfeeding.

In response to her tweet about early morning nursing, model Chrissy Teigen, who is currently pregnant with her and husband John Legend's first child, tweeted at Kim with a worried, sad face emoji.

"Ohhhhh just you wait and see.... Lol," Kim tweeted back.

WATCH: Saint West Is 'Definitely' Kim Kardashian's Last Pregnancy, But Adoption Isn't Out of the Question

Although Kim later tweeted a photo from her morning jog, showing off the gorgeous scenery along her running route. There's no better way to work through sleep deprivation than to get your blood pumping.

WATCH: Kim Kardashian Lost 30 Pounds Since Giving Birth, Wants to Lose 40 More

Whatever she's doing to stay healthy and get fit, it's working. Kim, who says she gained 60 pounds during her recent pregnancy, recently revealed that she's already lost 30 pounds since giving birth to Saint and is looking to drop another 40.

For more on Kim's post-pregnancy workout routine, check out the video below.