Dog Pregnancy Calculator



Dog pregnancy calculator results


Due Date of your Dog

OR, Due Date Between
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The different stages of dog pregnancy week by week.

Week 1: During the first week, fertilization happens as the sperm meets the egg. Then fertilized egg moves to the fallopian tubes then implants into the uterine lining.

Week 2: By the second week, the embryos start to develop. The cells divide rapidly, forming tiny clusters. The mother dog may not show any noticeable physical changes during this stage.

Week 3: By the third week, the embryos develop into blastocysts. These contain the inner cell mass, which will become the puppies, and the outer layer, which will develop into the placenta.

Week 4: By the fourth week, the embryos continue to grow rapidly. You may notice changes in the mother's behavior and hunger at this stage. She might become more loving or show signs of morning sickness.

Week 5: By the fifth week, the embryos develop recognizable features. The spinal cords, limbs, and facial structures start to form. The mother's abdomen may begin to enlarge as the puppies grow. You might also notice changes in her nipples, which can become more noticeable and darker in color.

Week 6: By the sixth week, the puppies' body parts begin to develop. The mother's belly will continue to expand as the puppies grow in size. Ensure that she receives a nutritious diet to keep the puppies healthy.

Week 7: By the seventh week, the pups' skeletons start to harden, and their coats begin to form. The mother's belly will noticeably increase in size, and she may experience increased weight gain. Her energy levels may decrease due to the pregnancy.

Week 8: By the eighth week, the puppies are fully formed and ready for birth. At this stage, the mother's belly will be large, and you may be able to feel the puppies moving inside her. Provide her with a quiet and comfortable place where she can give birth.

Week 9: By the ninth week, the mother's mammary glands will start producing milk for serving the puppies. Monitor her closely for any signs of labor.

Week 10: By the tenth week, the mother will likely give birth. The length of gestation for most dogs is between weeks 9 and 10. So, be prepared with the necessary supplies and have a veterinarian's contact information in case of any complications.

What is a dog pregnancy calculator?

A dog pregnancy calculator is the best free tool to calculate the due date of a pregnant dog. The date of the dog's mating is taken as the input and calculates the approximate gestation period, which is typically around 63 days for dogs.

How to use a dog pregnancy calculator?

It is very easy to use, only you have to enter the first mating date of your dog and then click the Calculate button. Then calculator will process the mating date you provided and give you an estimated due date for your dog's pregnancy.

Accuracy of the dog pregnancy calculator

A dog pregnancy calculator provides only estimates of due dates assuming the average gestation period of dogs. 63 days are taken as the average days for pregnancy completion. And 58 days are taken as an early due date and 68 days are taken as the late due date.

Can a dog pregnancy calculator determine the number of puppies?

No, a dog pregnancy calculator cannot guarantee the exact number of puppies. Ultrasound or X-ray tests can give a more accurate count of pups.

Is it normal for my pregnant dog less hungry?

Yes, a lowering in hunger is common during the stages of pregnancy.  If your dog refuses food for a longer time or shows other concerning symptoms, go to consult a veterinarian.

How to confirm that my dog is pregnant?

Veterinary Checkup: Schedule an appointment with a veterinarian who can perform a detailed physical inspection of your dog. Veterinarian will evaluate the dog's reproductive system, look for signs of pregnancy.

Hormone Testing: A veterinarian conducts hormone testing to detect pregnancy-related hormones, such as relaxin. Blood tests show the presence of these hormones as early as 21-30 days after mating.

Ultrasound: An ultrasound examination confirm pregnancy by seeing the developing puppies in the uterus. It is done around 25-30 days after mating to detect fetal heartbeats and confirm pregnancy.

X-ray: X-rays are used to confirm pregnancy in the later stages. This method is conducted after day 45 of pregnancy when the skeletons of the puppies are calcified and visible on the radiograph. X-rays can estimate litter size and confirm the puppies' positioning for birth.

How long is a Golden Retriever pregnant?

A Golden Retriever's pregnancy typically lasts between 58 to 68 days. This duration is similar to the average gestation period for most dog breeds.


References :

  • https://www.gov.uk/guidance/pregnancy-advice-on-contact-with-animals-that-are-giving-birth
  • https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2099502/
  • https://www.aphis.usda.gov/aphis/pet-travel/bring-pet-into-the-united-states/pet-travel-dogs-into-us