The day of the dog is the day of the zodiac. There is a dog day every 12 days.
A dog gives birth to many children and is said to be the "guardian deity of safe delivery" because of its light birth.
It has been handed down as a custom unique to Japan to wrap a belly band on the first day of the dog's fifth month of pregnancy, which is the beginning of the stable period, and to pray for a safe delivery at the shrine.
At the day of the dog, we first receive a prayer for a safe delivery and then wrap a band called a girth around the pregnant woman. Recently, I sometimes just get an obi.
The pregnant woman's body is delicate even though it is in a stable period. If your physical condition changes, stop worshiping and do not put a strain on your body.