Crazy Photo Question..

So i am sitting here going over our contracts, just to refresh my memory on when things need to be paid by...Our contract for the Photographer says 'On Delivery of Completed Product' then further on it says 'completed product delivery date - 4-6weeks after event'. Does this mean we do not pay the Photographer the remaining balance until we pick up our Photographs and Video in 4-6 weeks after the wedding?

Sorry for being a dummy guys but I have never hired a Photographer before.

i would think its when you actualy get the pics i haven't really lloked into them yet...
give them a call to check if your confused