Ahh, so sorry to hear about that.
I am in a similar boat. I just started a full-time job a few weeks ago. When hired they told me it would be a year to year and a half assignment, then they would have no use for the position. Since I am moving out of town in 4 - 5 months (which they don't know about) I told them it wouldn't be a problem, that I didn't mind that the position would be ending within two years. I felt horrible, but I REALLY need the money. I sometimes think of how to give them my 2 weeks notice, but I have no idea what excuse to use. I was thinking of just saying "personal reasons" but then they ask questions, ya know? Anyway, enough about that.