3 months old Baby

Hi mga mommy! First time mom here. Ask ko lang po kung Ilang beses po painumin ng gatas ang 3 months old baby? And kung dapat po antayin natin silang magutom before sila i feed and hindi na need orasan? And kunwari po last feed nya is 7:30pm. Then, tulog po sya after. Ao next feeding nya ia 10:30pm. Need pa po ba syang gisingin para mag i feed? Salamt po sa sasagot.