Normal yan, mama! Two to three times a day is actually okay for formula babies, lalo na if he seems happy and the poop isn't too runny or constipated, just check kung okay ang consistency at buo ang diaper output niya. Since three weeks lang siya sa Nestogen, it's possible his system is still adjusting to the new milk, kaya the frequency might settle down in another week or two. If you notice any changes like diarrhea, constipation, or kung umiiyak siya ng masakit pag nag-poop, best to check with your pedia just to be sure lahat ay maayos.