The typical age for kiddos to start losing teeth is age 6 but it can happen early and I guess it is more common for girls to lose them earlier than boys. They usually come out in the order that they erupted. First in is first out. Save up your coins and dollars for the tooth fairy!!
Nope, not too early. Did he start getting teeth in early?? Usually the earlier the teeth coming in, the earlier they lose them. Can be as early as 4 and as late as 7. Don't worry! Totally normal.