and so delivery is initiated by the caregiver. >> hi, rikisha, how are you? >> i'm well.ow are you? >> all right, so let's take a look with your blood pressure and go from there. >> mcfarland: rikisha had an indicated preterm birth. she developed a dangerous blood infection, and because of that, doctors delivered the baby early. >> so once you have sign of infection, the baby has to come out right away. i didn't realize how serious it was, but later on, the doctors told me i pretty much almost died. >> mcfarland: while, as in rikisha's case, an indicated preterm birth is often a medical emergency, the other type, a spontaneous preterm birth, can happen without any warning, but there are a number of risk factors. >> probably the most common one that people know about is multiple gestation, where the woman is carrying twins or triplets. the risks of delivering premature are ex--significantly elevated. we also recognize that another premature risk factor is prior preterm birth. so any woman who has had a spontaneous premature birth previously has a significant risk of that h