In the same way that pregnant human moms have many changes their bodies are undergoing, so it is the same with pregnant dog moms. It is very important to become familiar with the necessary steps to take in caring for these “moms to be” in order for them to have healthy puppies.
A dog is pregnant for a total of 60 - 63 days. Of course it can be hard to pin down an accurate date when you do not know when they first conceived. In order to make this easier you need to be made aware of the symptoms of pregnant dogs.