Didja start exercising? If you're sore, you can be retaining a few pounds in water weight that may be about to resolve. And some people just have a slow start and then a whoosh.
Get a workout DVD, or if you have Netflix, get it from there. I'm doing the 30 Day Shred and I've lost 5 lbs since Monday starting it.
Don't let 3 measly lbs get you down. I weighed 195 in August of last year, off to a great start, and then I got frustrated with not finding a job, sat on my butt, and gained again. Then I got up to 213 (my highest ever!!!), and that's when I decided "F*ck it!!!" and I bought the workout DVD the next day and started doing it, and I feel a lot better now. I've set realistic goals for myself not set in stone, and take it day by day. I write down what I eat and the calories.
What's great about workout DVDs is that you pay once for them (mine was $15 at Target) and then you can do them whenever you want, for how long you want, and it's all up to you. I'm doing mine before work, and then showering, and then I feel just fantastic for the rest of the day. So far, so good, just as long as you stick to it.
Oh, and if you do get the 30 Day Shred, all you need are 2-3 lb hand weights.
Good luck! Being here is the first step.