in the u.s. black women are three times more likely than white women to die during childbirth. cnn went to minneapolis to talk to new mothers about their experiences and what needs to change. >> reporter: on a playground with their children minnesota mothers marvel because these moments almost never happened. >> i honestly felt like i was going to die. i did. >> reporter: nisa was six months pregnant when she was diagnosed with covid-19. she said the hospital staff denied her oxygen as she watched her unborn daughter's heart rate climb. >> i'm like my baby's heart rate is up. my heart rate is up. blood pressure, everything is up, and you're telling me i don't need oxygen. i can't breathe. >> she survived and delivered joey in june, but the 34-year-old feared she would