That sounds very normal! My DS ate every two hours until about 3 months or so, but he didn't have the long night stretch. I'm afraid if you start supplementing, it could mess up your supply. I know it seems hard right now, but looking back the time went by very quickly and I'm so happy that I kept breastfeeding. It's kept my DS so healthy and I like knowing it's made especially for him! Now he only BFs 3-4 times a day and it's so much easier now.
Kendra