Whoa, stop right there. Yes, SG can fall below 1.010 - way below. I have seen saisons at 0.998.
Do NOT bottle just because you are at your target FG. Wait two days, take another measurement. If it's the same, then yeah... just some degassing. Nothign to worry about.
If the gravity keeps falling, it is still fermenting. If you bottle it before it's done, you run a huge risk of bottle bombs.
You cannot stop fermenation without pasteurizing or otherwise killing the yeast. Just let them do their thing.
Think of OG and FG as targets, but not absolutes. You are working with living organisms, here.
- blogging about making my own beer and raising a lot of kids.
Check out the priming sugar calculator
and the beer calorie calculator
Fermenting: Yorkshire square brown ale
Bottled: Belgian golden strong ale, Yorkshire square brown ale, Leffe Blonde clone, imperial nut brown ale