definately not! Your coins will be safe, believe me you have nothing to worry about. Do you have a backup of the dat file before the send?
If so even better.
One last thing, what is your current block your wallet is on? you can find out by Help-Debug window-information tab, should be on block 1293604. If you are on that block, no problem as the blockchain is slowed right down I suspect to some very old coins staking. it will be sorted soon I expect.