Hello Stephanie and welcome to Mothering. When you have a moment please feel free to stop by the ttc forum at http://www.mothering.com/community/f/178/trying-to-conceive.
If you have any questions dont hesitate to contact me or any of the other awesome mods!
Hi Jesse and welcome to Mothering. I'm sorry about your ds's dent. When my ds was younger he fell and knocked his forehead and had a dent. It eventually filled back out.
We have a "Moms In Your Area" section you might want to check out http://www.mothering.com/community/f/76/moms-in-your-area
We also have a nice toddler section http://www.mothering.com/community/f/17511/toddler
Since he won't be "kindergarten age" by the time registration is open/closed then I wouldn't worry about it. If it would give you piece of mind to do the paperwork for homeschooling then go ahead. I'm not sure how that would affect his going into 1st grade next year.
eta: I'm sure someone will be along that can give you better advice. Good luck!
I'm normally lurking. Reading and silently supporting. We're not doing much since DH is getting hernia surgery on the 14th. Now after he heals it'll be a whole nother story. lol Although I am trying to sneak in some bd without him knowing my o is coming up.