Yeah its going to happen...A LOT! You can try DMCA takedown requests if you wish, but I don't think you'll ever be able to get all of your stolen content removed, as a lot of sites ignore these. Look at it in a positive light, as free advertising, which will hopefully lead to more traffic to your room
I used to get super annoyed by the sotes that appear to be trying to use your free shows to sell monthly subscriptions to their sites and such, but at the end of the day it doesn't really affect your income. Your fans and regulars will always want to spend their money on you and these sites tend to post your full username along with the site your using, so hopefully anyone who comes accross them will just lool for you on your main camming site anyway
If your more worried about the privacy side of things then definitely apply for verified model status on here if you haven't already...
https://www.ambercutie.com/forums/forums/models-request-verification-here.71/
Once you do, there is a lot of help taking you through the steps on how to go about getting your content removed, along with lots of other amazing advice for new models.
Good luck!