We found out his tooth was loose just a little before his 5th birthday. I noticed it was sticking out ever so slightly and wiggled it only to find out it was loose!! Mommy was a little sad at that moment and sorta in shock! We let it run its course and didn't bring it to J's attention. We really started to notice how loose it was a few weeks later, so we started searching for a children's book to explain the process and a pillow for the Tooth Fairy. We literally found the book the night before he lost the tooth. The tooth was gone in the morning, but I found it on the floor beside his bed. Much to our delight, he thought losing a tooth was awesome, and his teacher said he was super excited to show his classmates!!
Yes, it fell out normally, not knocked out, the permanent one is on its way in, and on top isn't the typical first one lost but not a sign of anything unusual for J!