If my calculations are correct, 12Mh/s means 1 valid share each 5.5 days.
Do you mind explaining to a noob what formula you used to come up with that.
1200MH/s require ~ 1.3 hours to get a share. 12Mh/s means 100 times less, so it requires 100 times more time to get a share. That means 130 hours or 5.4 days.
edit: Is there a way to check your how your miner is doing remotely(not at home)?