Baby is going to turn 2 months i switched her formula to a hypoallergenic cuz she was allergic to soy and regular formula but since i switched it shes only drinking 2 ounces is that normal?

Not enough: 2 ounces at one time is usually not enough for a 2 month old baby to consume at one feeding, although the important thing is that the child gains weight & grows & develops. Try feeding 1-2 ounces then a short break (3-5 mins) then offer another 1-2 oz. But if the baby is growing & gaining weight & satisfied (not crying/fussing) with smaller amounts that may be adequate.