My little man is one month old

He’s taking 4 oz every time he eats

Usually 3-4 hours

But sometimes it’s been like 1&half .. almost 2 hours after he ate, and he just doesn’t wanna stop crying

I change diaper I done everything I know to do, but my husband like we are over feeding him? And I’m like well I think they are suppose o eat every 2-4 hours ??? So what I’m asking is if it’s ok to feed him like an hour and half after he already ate?