I agree with the pp. It was trial and error for us in the first several months. I was feeding every 2.5 hours from the start (except in the hospital after she was first born and I didn't know what in the world was going on :? ), but it took her awhile to bf well. Therefore, we sometimes bf just a bit every hour or so, and tried to offer the bottle to make sure she was getting nutrition. Anyway, if you're not sure, go ahead and offer a feeding. He'll let you know whether or not that is what he needs. You could try charting his mood, the time, and what you tried and what worked. Tracy's chart of cry descriptions was also a livesaver for me. It was my first step in figuring out how to help dd and set me on my way with her.