Formula may give your baby a foul smelling poo and that's fine. Two to three times a day is fine as long as its not watery. If it's watery, you should see a doctor. If you can find a lactation consultant, it can help with lactating. However do not beat yourself as a lesser mother who's not breastfeeding well. It happens sometimes.

You have not been lactating and ur baby is 2 months old? That's strange! What efforts av u made to lactate? Is this ur first child? Av u asked other mums whose baby feed on formula only abt d stool smell?