Day 1 to Day 15: If the dog is deliberately bred, it is best to breed again after 48 hours to increase the chance of pregnancy. If the pregnancy is successful, the sperm will travel up the cervix. During this period, the egg will also grow into a blastocyst.

Day 15 to 22: The female dog’s nipples will become larger and pink, and the hair on the abdomen and near the nipples will also begin to become finer.

Days 21 to 28: Due to hormonal changes, or the tightening and expansion of the uterus, morning sickness may occur in pregnant dogs, and the female dog will appear colder than usual. They may also refuse to eat and occasionally vomit. You can eat smaller meals more often to increase the female dog's appetite. You can also ask a doctor to prescribe some medicine to your dog to relax the uterus.

Days 26 to 30: During this period, the embryo will be walnut-shaped and can be reliably palpated by an experienced person (breeder) or veterinarian to diagnose whether the female dog is pregnant and how many puppies she has.

Day 29: Start to increase the dog’s food, but do not overdo it and avoid excessive weight gain. The fetus has now fully grown into a puppy.

Day 35: The female dog’s abdomen begins to swell, and the female dog will often lick her vagina. In addition, the female dog may vomit slightly.

Day 45: It’s easy to feel the puppies, but harder to count them.

Days 48 to 56: The female dog will spend more time grooming her body, her belly will be more swollen, and she may become a little restless, restless and start to look for a suitable place to give birth.

Day 50: The female dog may lose her appetite because her belly has been filled with baby dogs. Therefore, it is best to give her dog small meals and frequent meals. At this time, it is also easy to feel the movement of the baby dogs in the female dog’s abdomen.

Days 50 to 63: Use warm water to clean the nipples and vagina, and shave the hair around the abdomen and nipples to make it easier for the dog to suck breast milk after birth.

Day 59 to Day 63: Some lotion may flow out from the nipple.

Day 62: 24 hours before giving birth, the female dog’s body temperature will drop from 101 (38.5) Fahrenheit (38.5) to 98 (36) degrees, and some clear secretions will also flow out of the vagina.

Day 63: The expected date of delivery of the female dog, but it is only an average number. The delivery date can occur from the 59th to the 65th day.