sleeping

I've heard of sleep regression at 4 months but what about 5.5 months? He wakes up five times a night now. His norm was down at 7:30. Up about 1:30. Up again about 4:30. And up for the day at 7:30. He is breastfeeding. Now, he is waking up every two hours. I still will only feed him twice like normal so he doesn't get into the habit of eating all night. I'm hoping he will sleep through the night at some point. I'm ready for it!! Anyone else having problems? Or had problems and then they settled back into the norm?