Days 1–122: early pregnancy
Fertilised eggs implant in the uterus and the embryos begin to develop. Losses are most common now, so keep the donkey on a steady diet and avoid stress, transport and abrupt changes in housing.
Donkey Gestation Period: How Long Is a Donkey Pregnant?
A donkey is pregnant for about 365 days, roughly 11 months and 4 weeks. Normal foaling happens between 340 and 390 days, and a typical litter is 1 foal.
How long is a donkey pregnant?
A donkey carries her foal for an average of 365 days, or about 11 months and 4 weeks. Counting from the breeding date, foaling is normal anywhere from day 340 to day 390.
Donkey gestation stages, month by month
Days 123–244: mid pregnancy
Growth is steady but the demand on the mother is still modest. This is the practical window for a pregnancy check, routine health care and any change of pen, paddock or enclosure.
Days 245–335: late pregnancy
Most fetal growth happens now. Energy and protein needs rise sharply, the abdomen enlarges visibly and the mother should be gaining condition rather than losing it.
Days 336–390: preparing for foaling
Herd records, a confirmed service date and a clean, well-bedded birthing area matter more than the exact day on the calendar. Watch for nesting behaviour, udder or mammary development, restlessness and loss of appetite in the final days before foaling.
Signs a donkey is pregnant
- No return to heat at the expected interval after mating
- Gradual weight gain and a firmer, rounder abdomen from mid pregnancy
- Appetite increases, often noticeably in the second half of gestation
- A vet can confirm pregnancy by ultrasound or palpation once the donkey is far enough along
Signs of approaching foaling
- Mammary development and nesting behaviour in the final weeks
- Restlessness, reduced appetite and isolation from others in the last day or two before foaling
- Contact your vet if labour stalls, if the animal strains without progress, or if there is abnormal discharge before foaling begins.
What affects donkey gestation length
- A donkey is pregnant for about 365 days, roughly 11 months and 4 weeks.
- The normal range runs from 340 to 390 days, a window of 50 days.
- A typical litter is 1 foal, and larger litters usually arrive slightly earlier than the average.
- Maternal age, body condition, nutrition and season each shift the date by a day or two in either direction.
Estimate your donkey's foaling date
Enter the breeding date for an estimated foaling date at 365 days.
Estimate a donkey due date
Estimated foaling date
Thursday, 29 July 2027
Earliest
4 Jul 2027
Latest
23 Aug 2027