Dog pregnancy lasts about 63 days from mating, which is just nine weeks. That short length means every week matters, and owners who know what to expect can prepare properly instead of guessing. This free calendar counts forward from the mating date to the probable due date and lays out week by week milestones, from early implantation to the due week itself. It is an educational guide. Pregnancy needs real vet care, including checkups, scans and a birth plan, and no calendar can replace that.
Using the calendar is simple. Enter the mating date and press the button. The tool shows the probable due date, 63 days later, and then nine weekly blocks with their date ranges and a short note for each week. In the early weeks there is little visible change. Around week four, an ultrasound can usually confirm the pregnancy. By week five the belly starts to show. In week six the puppies grow fast and a whelping box should be ready. Week nine is the due week, when labour signs need close watching and the vet should be easy to reach.
Here is a worked example. A mating date of 1 January 2026 gives a probable due date of 5 March 2026. Week one runs from 1 to 7 January, week five from 29 January to 4 February, and week nine from 26 February to 4 March. Real births often fall a few days either side of the due date, so treat the final week as a watch period rather than a single day. Prepare the whelping area by week six, not week nine, because a late rush helps nobody. Keep the vet’s emergency number visible from week eight onwards.
Feeding during pregnancy needs care. In the early weeks, most dogs need their normal food. As pregnancy advances, the vet may recommend more food or a different diet, because growing puppies demand a lot. Do not guess at supplements: some, such as extra calcium, can do harm when given wrongly. Ask the vet at the first pregnancy checkup what to feed and how much. Fresh water should always be available, and the dog should be able to eat in peace, away from competition with other pets.
Exercise should continue but gently. Normal walks are good through most of pregnancy, while rough play, jumping and long exhausting outings should stop as the belly grows. Watch for signs that need vet advice: vomiting that continues beyond early pregnancy, a foul discharge, bleeding, loss of appetite late in pregnancy, or a dog that seems in pain. A pregnant dog that stops eating entirely, becomes lethargic or shows labour signs long before the due week needs prompt attention, not waiting until morning.
The most common mistake is skipping vet visits because the dog looks well. Pregnancy can hide problems, and a scan confirms not only that the dog is pregnant but roughly how many puppies to expect, which matters at birth. If fewer puppies arrive than expected, the vet needs to know at once. Another mistake is having no birth plan: know where the whelping box is, who will be present, how to keep the area warm and quiet, and when to call the vet. A plan written before week nine is worth far more than panic during labour.
After birth, the calendar’s job is done but the vet’s is not. The mother and puppies need a checkup in the first days, and the mother needs good food, rest and a calm space. Watch the puppies for steady weight gain and watch the mother for fever, a foul discharge or reluctance to nurse, all of which need vet advice. If you do not plan to breed again, discuss spaying with your vet once the puppies are weaned. A planned pregnancy, followed by proper care, gives the mother and her puppies the safest possible start.
Spanish version: Calendario de gestación en perras – Fecha probable y semanas orientativas
Pingback: Calendario de gestación en perras - Fecha probable y semanas orientativas