4 year old

Keyaira • Wife, 23 y/o, mother of a 4 yr old, expecting July 2019 😊

My son who turned 4 in December recently had dental surgery about a year ago and maybe like 2 months ago he got a check up and the dentist said that his teeth look good.. my husband noticed that his front tooth looked pushed out...his tooth is loose! Any other parents childrens have loose teeth around age 4? I googled "which I shouldn't do" about children and the age it says from age 4 to 7 is when the can lose them.