^Pheew, that's a relief. You don't want to deal with those, from what I've read/heard about 'em. Little bastards.
Anyway,... what you can do as a safe precaution, is to start using neem oil. It's one of the mites' natural enemies, and renders them sterile. Not right away, but over a few weeks. But, they hate the stuff, so if you spray the foliage, the pots, the top of the soil, etc.....you'll be pretty damn safe from attack. The neem, is natural oil from some tree overseas, so you don't have to worry about chemicals or anything, from using it. It's good stuff.