In the video, the 32-year-old also voiced her fears that something might go wrong with the birth, as she "hadn't felt the baby move lately," and suffered a miscarriage in 2018.
"The last time I felt pain like this was not a good experience," Mitchell says in the clip.
After 13 hours of painful labour, the actress decided to take pitocin, a drug which can help strengthen contractions.
23 hours in, her labour still hadn't progressed so she decided to have an epidural - despite her boyfriend controversially saying she shouldn't have one.
"My mum didn't use an epidural … I meet women all the time who didn't choose to use epidurals," her boyfriend Matte Babel said earlier in the year.
"As a woman, your body is genetically engineered to give birth."
At the 33 hour mark Mitchell finally delivered her baby.
"I was 99% excited to meet her and 1% excited to eat something," she told the camera.
