Hi all, i'm a bit stressed out atm about how many bottles my 3 month old should be having

I saw the pead yesterday and she asked how many botle DS is having i said 4 a day at 150 mls sometimes her doesn't drink the whole lot either.

She say OMG he should be having at least 5!!
And today he had 3 bottles 2 of them at 210 mls and at 6.30 he would scream while i was trying to feed him his last bottle.

He just doesn't seem hungry at the last feed of the day! but i can't just give him only 3 bottles??

help please!!!