Below is a helpful teething info:
Teething in babies begin as early as 2 months old and as late as 31 months. Teeth don’t actually erupt through their gums until 4-6 months old. The bottom teeth (incisors) usually come in first followed by the top two, but sometimes it's vice versa. Then the canines (or, as I like to call them, "fangs") make their
appearance. Molars are the last and they usually come in between baby's 1st and 3rd birthday, so our little ones are teething for a long time.