According to the AKC, Birthday #3 today makes Bella 28 years old in human years.
Small dogs mature fast!!! By 15 to 18 months old, they are old enough to be mothers.

At 3 years old (like Bella is today), all sizes of dogs are equal in "human years". After that, dogs small dogs slow down in aging. Following their fifth birthdays, small dogs age a whole lot slower than dogs 20 pounds on up. Bella is 3 pounds 7 ounces. So she should have a long life ahead of her. Today is just the start of many more thousand photos of her!!!

BTW, Bella LOVED her birthday cupcake. Although she was supposed to share with the other two girls, she ate most of the whole thing herself. That was more than enough sugar for a year!!!