How many oz was your baby drinking at 5 weeks. My son is still only having around 3oz or less and he's 5 weeks 2 days.
They say 150ml per kg so work out what lo weighs in kg and times it by 150. Then divide by 30 as theres 30ml in an oz.
It will tell you what baby should have in a 24 hour period. Its a rough guidline though can be out by few ozs xx