Lesley Regan, PhD, MD, who is the head of the Miscarriage Clinic at St. Mary’s Hospital in London, finds it surprising to hear issues related to miscarriage to be reasons for weaning. “Once a pregnancy is clinically detectable, breastfeeding should pose no added risk of pregnancy loss. There isn’t any data suggesting a link between breastfeeding and miscarriage, and I see no plausible reason for there to be a link.”