ET spoke to Kemper about her pregnancy at The Secret Life of Pets premiere back in June, where she admitted that she was still getting the hang of planning for motherhood.
"How do you anticipate what's going to happen?" she wondered. "We're just going to take it one day at a time. I don't know what I'm doing, so [I'm] very confident in my ability."
The 36-year-old actress also revealed that she'll have a little time off after her baby is born before the cast and crew begin filming the third season of Unbreakable Kimmy Schmidt in the fall. "There will be some downtime for me to raise this baby. To swaddle it," she said. "That's what they tell me."