What should i do now i have bought some EOS trough bitfinex. The Coins are still on the Exchange im good with it atm?
You need to register them before the ICO finish or they become useless.
Personally I wait till Mai in order to know if Kraken register them for me.
If they don't until then - I will register them myself.
You can find more info on registration on reddit:
https://www.reddit.com/r/eos/