How's his output? That's generally the best indication of if he's getting enough! 5-6 heavy wet disposable nappies or 6-8 cloth. Does that sound like what he's giving out?

When he's awake is he generally happy and alert? As alert as a 7 day old bubs can be I mean!

I think between 8-12 feeds in 24 hours is about what to expect. But every baby is different.

You're doing all the right things. Keep it up