There really is no way to tell absolutely at this point if it's still a week away. They do make tests that may work up to three days before, so you MAY be able to get one of these tests in a few days. However I've heard they're still highly inaccurate. Even if you do miss in a week it could still just be stress from worry, so I know it's difficult almost to the point of impossible, but try not to worry about it too much.

We all make mistakes. And serious and severe ones... try not to be too hard on yourself.