How much formula for a 2 week old? Advice needed

[HowDoIGetHimOut]

Hi,

My DS is 2 weeks old, he is a big baby. He is having about 3 & 1/2 ounces of formula and going between 3 and 4 hours between feeds. Is this about right? Have only just started bottle feeding so am a bit unsure as to what he should be on. He is on number 1 teats too...is that correct?

TIA xx

How much does he weigh? As a rough guide they need 2.5oz of formula per lb of body weight per day.