My son is 6 and looks SOOOOO funny! He first lost the bottom two just prior to Christmas. Then this summer (turned 6 in June) he lost the top two within a day of each other that had been really wriggly for like a month! Then while on vacation playing with his cousin, he suddenly paused on his way outside and showed me his loose tooth, I was surprised and asked when did that happen? His response: I dont know, maybe just now! then not 15 mins later, he was eating a reallllly soft sugar cookie from the store and then mumbled & signed to me through a mouthful of cookie "Mm, I think my tooth came out!" (sure enough it had, quickest & easiest tooth to come out! and I hadn't even known it was loose till minutes before!)
Within another month or so? ALL 4 of his top teeth were GONE. What a gummer he was !!! And he still loved corn on the cob!
Now he has these two big huge front teeth growing in in that space where the 4 baby teeth were. Looks funny! His bottom two teeth are growing in, but since the neighboring teeth haven't fallen out, they will have to be pulled because the adult teeth are too crowded and growing back behind the baby teeth still in place.
So, dont fret, be glad your little sweetie still got his baby teeth. And teach him good brushing habits now, if you haven't already! Dentists aren't cheap, especially if they have to do some work!