Tyson was born November 11th and i've been keeping track of his age and even marked it on the calender, but then things didn't add up at the end of the year. Do you guys and gals go by actual weeks or just do months? What I mean is Tyson was officially 2 months *8 weeks* old on January 6th but if I go by months he wasn't 2 month until January 11th.