DD is now 13+ weeks and this week my supply has seemed to get very low. She now sleeps through the night, about 8 - 10 hours. During the day she eats every 2 - 3 hours. I have always had plenty of milk, until the last few days. In fact it was awful tonight, she was hungry for her last feeding and it had been about 2 hours since her last feeding and I hardly had any milk. She stared screaming, it seemed like she was so hungry. I tried pumping and got nothing. I very reluctantly tried giving her formula, but she didn't want it. She just screamed and was looking at me like "why won't you feed me?" I don't know what to do. Is it possible to get my supply up again? Does her sleeping at night have anything to do with my supply during the day? HELP!!!!