This video is intended for informational purposes. It contains scenes which some viewers may find offensive. Viewer Discretion is Advised! A jennet is normally pregnant for about 12 months, though the gestation period varies from 11 to 14 months, and usually gives birth to a single foal. Births of twins are rare, though less so than in horses. About 1.7 percent of donkey pregnancies result in twins. Although jennets come into heat within 9 or 10 days of giving birth, their fertility remains low and it is usual to wait one or two further oestrous cycles before rebreeding. Because of this and the longer gestation period, donkey breeders do not expect to obtain a foal every year, as horse breeders often do, but may plan for three foals in four years. Please subscribe, comment and like.