Need an opinion on a play...

[The_Missile]

[I'm big blind in this hand]
[Game format is: everyone starts with 50 chips of equal value]
The player in first position raises five with pocket jacks, blinds at 2-4, to 9. Everyone around the table folds to me. Now, I'm sitting with 2-7 offsuit but for some strange reason I always play, so, I call the raise. Flop comes down 2-4-7. He has top pair, but I have 2-pair. I check, he bets 3, and I raised all-in because I was short-stacked at 19. Now, mind you, he hits a set on the river to knock me out, but, did I make the right move going all-in on top of his bet post-flop, seeing as I didn't know he had pocket jacks?