How to tell if a dog is pregnant:

1. The earliest sign of dog pregnancy appears about one week after mating. At this time, the dog will have mild vomiting, loss of appetite and other pregnancy reactions, which will last for about 1-2 weeks.

2. You can pay attention to the changes in the dog's body. After the dog is pregnant, the nipples will turn pink and red, which is an important sign of pregnancy. From 2-3 weeks after pregnancy, the nipples will begin to change. More pink than usual, swollen and prominent.

3. When the dog is 4-6 weeks pregnant, the dog's body shape begins to change. At this time, the dog's waist will become significantly thicker, and the belly will gradually protrude, making it more swollen than in the early stages of pregnancy.

4. In the last three weeks of pregnancy, that is, the sixth to ninth weeks, the dog’s belly will become round and bulging. The breasts also swell due to the development of mammary glands. At this time, the dog is ready to breastfeed.

5. In the last three weeks of a dog’s pregnancy, you may see squirming on both sides of the dog’s abdomen. This is the activity of the puppy in the uterus. If you touch it gently with your palm, you may feel fetal movement.