Ditto, I wouldn't worry yet, and I definitely wouldn't give up on feeding f/t. A mistake lots of us make early on is thinking of our snake's metabolisms in terms of our own. Don't think of it as not eating for a week, think of it as skipping a meal. You can certainly skip a meal without long-term consequences, and so can your snake. If you wait until his next scheduled meal, he may very well eat for you.

There are also different tricks that work with different snakes. Paul and I have both gotten reluctant feeders to eat by making the mouse zombie "crawl" on or otherwise touch the snake. Tigergenesis superheats her mice because her snake won't eat them otherwise. Some people have had to leave the prey in the enclosure for a few hours in a quiet, dark room. Others feed in a particular container that smells of prey and triggers the hunting instinct. With some patience and trial and error on your part, you'll figure out what will work with your snake. The one thing you should definitely never try is feeding live and not supervising, because that can have serious consequences.