Kylie Temple knew from a young age that she loved kids. As a NICU nurse in Mississippi, Kylie spends her days around infants, and in 2015, her first son, Riley, was born.

“My husband and I knew we wanted him to have a sibling,” Kylie says. Unfortunately, she experienced back-to-back miscarriages, which she learned were caused by a rare blood-clotting disorder. When Kylie became pregnant again in 2018, she was prescribed blood thinners...