Actually nobody will laugh at your game even if it's bad. The hardest task is to accept to share your work, which can be extremely personal, and to see how people see it. Multiple points of view help a lot at understanding how you can tweak a game to make future ones even better.
The point in game jamming is to learn and improve while having fun sharing your game and playing others' games : nobody's here to make fun of someone.
I'll be glad to play your game if you manage to finish it, even if it's extremely short.
Take care !