Two best friends, Emma and Phoebe, decide to get pregnant simultaneously to navigate motherhood together, but their friendship is tested when only one of them conceives.
| Actor | Role |
|---|---|
 Karen GillanEmma | Emma |
 Zoë ChaoPhoebe | Phoebe |
 Sam RichardsonBen | Ben |
 Max GreenfieldBrian | Brian |
 KJ ApaRob | Rob |
 Mary SteenburgenSue | Sue |
 Ed Begley Jr.Dr. Young | Dr. Young |
 Taylor MisiakAmanda | Amanda |
 Amanda CrewBella | Bella |
 Lilly SinghMadison | Madison |
 Luke MacfarlaneDr. Morrison | Dr. Morrison |
 Jana SchmiedingRain | Rain |
 Nick KocherCormac | Cormac |
| SSabrina WellsStevie | Stevie |
| EEliza LakeAli | Ali |
 Brian McElhaneyRide Share Driver | Ride Share Driver |
 Dana MillicanFront Desk Nurse | Front Desk Nurse |
 Kulani KaiJulie the Delivery Nurse | Julie the Delivery Nurse |
 Becky SloviterKeekaroo Mom | Keekaroo Mom |
 Alyssa RoehrenbeckNap Strap Mom | Nap Strap Mom |
 Claire CoffeeNora | Nora |