My experience is that you don't really have a routine at that age. It kind of comes together closer to 6 months (well in my case it did but they are all different). As PZ said you just respond to their cues, feed them if they're hungry and put them down to sleep usually after a feed and comfort when grizzly. Grizzly periods happen and there's usually not much you can do apart from going through the usual causes of distress: hungry, nappy change, burping, illness etc. and there are times when bub is just grizzly and needs comfort. Don't try and stretch out your feeds just feed when your bub is hungry. I had a lot of different advice about routine feeding when I first came home from hospital particularly because we initially were FF. Then I had one health nurse tell me to demand feed my bub no matter if it was EBM or FF in the bottle - it was the best bit of advice I had and led to a much more settled baby. You get a lot of advice from a lot of different people on parenting and can feel that you are being judged at times for decisions you make or behaviour of your child. You just have to hold onto what you know to be true and do things your way.