Generally speaking, it is the second time, but it cannot be used as an accurate basis. There should be an interval of 1-2 days between the two times. It is best to choose the morning for breeding, and keep an empty stomach. You must defecate before breeding. Do not give food immediately after breeding. 3-7 days after the feeding, the dog's food intake increased significantly. After a month or so, if your breasts become slightly pink and swollen, you may be pregnant.

Tips:

After a dog is pregnant, its abdomen will become fat and round, and green-yellow liquid will be secreted when touching the hard lump nipples. Some dogs have , some don’t, the situation is not necessarily the same, some dogs will show anxiety symptoms, such as pulling on their fur pads, looking for places, hiding things, licking their lower limbs, etc.