I just went through so much puppy routine with my Snickers who is now 5.5 months but we got him when he was 8 weeks and just under 2lbs as well. We started him on 3 times a day (6am/11:30am/5:30pm) feedings that were about 2 tablespoons mixed wet and dry food. This schedule helped alot to determine when he would poop. He was on Nutro so we gave him that and then read up how horrible Nutro was and then switched him to Merrick which he devoures now. He is now only 3 lbs and we just switched him to twice a day feedings (6am/5pm) on Merrick dry kibble and at noon he gets a snack of 2 all natural blueberry pumpkin biscuits. Please try to check the quality of the food you are giving him as Pedigree generally is not high on the list (
Dog Food Analysis - Reviews of kibble) as that will ensure good health for your baby!!