I went on a trip for a week and got a little off track with my eating habits. I tried diet soda for the first time and have had about 4 since then. Of course I didn't each much, but all of the choices weren't the healthiest. When I got back on monday my weight was fine but now about 1 week after I have gained 4lbs. My weight has fluctuated for about 3 days from 245-241 (different everyday). So with that being said, either I'm pregnant or it's the trip catching up with me, either way it's BAD!!

I'm really hoping that it's the bad eating though :-/

It's hard to keep up with drinking enough liquids on a trip. I'm guessing you're experiencing some water retention due to a lack of hydration. The only reason I say that is the exact same thing happened to me after surgery. I took a weekend trip and didn't drink enough. It made my weight bounce a little when I started drinking, but then came back down.

Or you're preggers. (jk)

POAS!

I agree with Dooter's experience. I recall from 800 times through WW, that the sodium and caffeine in diet coke will dehydrate you... and if you had one, you should add an extra 8 oz of water to counteract that effect. You'll take that off in no-time. Water is your friend. Ha!