My puppies are half inbred? will they be ok!?

Dont panic!! here's your reassurance, THey'll be fine. at almost 6 weeks old, you should be able to see if any are acting like they are 'mentally challenged' haha. but dont worry, i was in you situation a couple of years ago, except my pups were fully inbred, and i still have 2, and they are both perfectly great dogs. they both have been to the vets regulary for shots and they both are internally sound & clean bill of health. so dont worry :)