Once a day poop

Hi mga mommies! Si baby kasi triny namin iformula milk and hindi kami na advice na may limit pala ang consumption nila and ever 2 to 3 hrs lang so ang ending from 3 kg naging 4 kg siya agad and 3 weeks pa lang siya. After check up, kinuntian namin ang consumption nya as per pedia's advice. The thing is, before mangyari to madalas siyang nagpopoop. Then now 1 time lang. Mix breastfeed and formula milk ang iniinom po niya. Thank you so much