1. You could have another member reserve a room and you would pay them for the reservation. You could also ask that they link the resrevation numbers together so you don't have to change rooms.
2. You could ask for a transfer of the points into your account and then they are yours to use as you see fit. If you do this you need to make certain that the points you get will work for the time frame you wish to use them and at the resort you are staying at. Transferred points keep their original resort and UY so if you are reserving before the 7 month mark you need to have the points from the resort you wish to resrve at. You can only have one transfer in or out each UY so if you are only looking for a small number of points it may be had to find someone to do a transfer unless they have only a certain number they would not be able to use and are willing to use their one transfer to do it.
3. Your other option is to borrow points from your next year if you have not already done so.