Hey ZoeJayne,
Yes, it's possible, but it may not be mostly fat loss unless you did a huge amount of exercise yesterday!
The body's weight goes up and down a lot, even during a single day. Mine will change 3 pounds sometimes from morning to afternoon. Usually this is a result of water retention, or eating, or who knows? But, the important thing is that the scale goes back down again.
I'd say, be happy with that 2 pound difference--but don't let yourself get down if the scale is up again tomorrow. Lots of folks only record their weight once a week so that they don't get thrown around by those daily changes.
Just stick with a good food plan--you'll keep dropping!
Jay