making blueberry melomel

Hello everyone.
I as well am a newbei to the making of mead.
I just started a gallon of plain honey mead last friday on the 21st of Nov.
I also started a small bottle of blueberry melomel on Wednesday the 26th.
These are both my verry first. I wanted to try doing it without using any
sulfites because they give me horrible headaches.
What I was wondering is how long should I wait before I rack them the first
time? The gallon of plain mead already has quite a bit of sediment on the
bottom? Any other advice on keeping the mead from being ruined without using
sulfite would be great to. I would really like to at least have something
drinkable for my first time. I'm going to start a gallon of ale mead
tommorrow. My hopes are that one will come out drinkable heheh.
Any advice is very apriciated. Its nice to see that there is atleast one
newsgroup out there for mead making.
Thanks everyone,
Your new loyal member,
David