Canine Gestation Calendar

·         Breeding takes place by way of artificial insemination (AI).

·         Within a few days, the sperm reaches the eggs and fertilization occurs.

·         The fertilized eggs make their way to the uterus for implantation.

·         You may notice behavioral changes in your dog. She may become moody or more affectionate.

·         Implantation has taken place and the embryos begin to develop.

·         Your dog may begin to display mood swings, appetite changes and breast tissue development as well as turning more pink in color.

·         Fetuses can be felt in the uterine horns around day 28, and can also be seen by ultrasound.

·         The spinal cords are developing, and the fetuses are beginning to grow facial features.

·         Your bitch's uterus will shortly fill with fluids to protect the fetuses. After this, it will be weeks until the puppies can be felt again.

·         Your dog's appetite will likely increase, so offer her more of her food.

·         The fetuses develop their sex organs and begin to look like actual puppies. The leg buds lengthen and develop toes.

·         Your dog's belly will begin to look noticeably swollen as the pups take up more space.

·         With less room for full meals, it's time to begin serving smaller meals more frequently.

·         Pups continue to grow and pigmentation develops. The eyes now have lids and remain sealed until approximately ten days after birth.

·         Your dog is noticeably more uncomfortable at this point. She may vomit occasionally due to the extra pressure against her stomach.

·         You may also notice clear fluid discharge from her vulva. This is normal.

·         Puppies are well-developed, and now begin attaining size in preparation for birth.

·         You may be able to see/feel the puppies' movements in your bitch's abdomen.

·         Her breasts are well developed and probably contain a bit of colostrum or "first milk".

·         Your dog is noticeably tired and may begin search for a place to whelp. Time to set up a whelping box.

·         The pups have fur and are now crowded in the uterus. You may notice a lot of activity as they get into position for the coming birth.

·         Your bitch may begin digging the bedding in the whelping box. This is natural "nesting" behavior.

·         Allow your bitch to feed freely as she is able.

·         The pups are ready for birth, and may be quite still as they rest in preparation for the marathon to come.

·         Your dog may appear uncomfortable and restless or anxious.

·         Time to begin taking rectal temperature readings 12 hours apart. Normal temperature is 100 to 101 F; a drop down near 97 F held for two consecutive readings indicates labor will begin within 24 hours.