It could be DES. The following info is from the CDC, with a link to their info. More organizations/support can be found from "googling DES". Good luck
Diethylstilbestrol (DES) is a drug once prescribed during pregnancy to prevent miscarriages or premature deliveries. In the U.S. an estimated 5 to 10 million persons were exposed to DES from 1938 to 1971, including pregnant women prescribed DES and their children. In 1971, the Food and Drug Administration (FDA) advised physicians to stop prescribing DES because it was linked to a rare vaginal cancer.
After more than 30 years of research, there are confirmed health risks associated with DES exposure. However, not all exposed individuals will experience DES-related health problems. Whether you know for sure or suspect you were exposed to DES, you can use CDC's DES Update to learn more about DES exposure and what you can do about it.