Help! Breastfeeding seems to be coming to an end already :(

Amanda
So for the first 2 weeks I produced 10+ ounces every 3 to 4 hours while feeding and pumping. Now all of sudden over the last 24 hours is has cut in half! I waited 4 hours and only 6 oz :( I was so proud an happy to be doing so well and not sure what happened! Anyone have any advice on what I may have done or what I can do to get it back?