One of the issues with this claim is that if the antibodies attack the placenta then that means the placenta actually formed, which means the patient got pregnant,” said Hector Chapa, MD, FACOG, clinical assistant professor of obstetrics and gynecology at the Texas A&M University College of Medicine. “So, it wouldn’t be a cause of infertility, which is the inability to conceive and become pregnant. The issue would be pregnancy loss, but that’s not actually being found in the data.”