Trying to dry up...OUCHHHH!!!

My baby turned one on Sunday (WOOHOO) and therefore I had my final pump. The two weeks prior to his birthday I had weaned myself down to pumping just once a day in anticipation of stopping altogether. It’s been almost a week since I’ve pumped last and my boobs are hard (and look like porn star boobs, sitting straight up and separated). How long is it going to take for my body to dry up and more specifically, how long until I’m no longer in pain? Thanks in advance.