Fans loved Elyse's candid snaps and sweet message.
"This is so accurate I love it," one wrote in the post's comments.
"The realness of this post makes even more gorgeous than usual," remarked another.
"So accurate! You're nailing it- 'When in doubt, get your boob out' is the only parenting mantra I live by," a third noted.
This isn't the first time Elyse has kept it real when it comes to motherhood.
When she and her partner Josh Barker brought Sunny home from the hospital for the first time, Elyse referred to the milestone moment as "the scariest drive home everrrr."
The model also shared some footage from her time in hospital, including a video of herself after a bit of a breastfeeding mishap.
"Got milk? I don't," she joked in the clip, captioned "Learnt my lesson fast."
She also uploaded a photo of herself lying in a hospital bed and tucked in with a bright blue blanket.
"Cooked," she simply captioned the photo.
Elyse and Josh shared their exciting baby news in early March with a sweet black and white photo of their newborn's feet.
“The next chapter in our lives. The best chapter yet,” Elyse's caption read.
“And it’s called Sunny ☀️ 25~2~21 Sunny Barke.”