Okay lang yan, mama! At 2 months, you can definitely introduce the bottle, whether formula or expressed breast milk, kahit exclusively breastfeeding ka pa rin; maraming moms do this para may flexibility at para makatulog nang mahimbing haha. The key lang ay introduce it slowly so baby doesn't get confused, at siguro na consistent ka pa rin sa breastfeeding para sa supply mo, kasi if you suddenly switch mostly to bottle, baka bumaba ang milk production mo. If gusto mo mag-formula lang or combination feeding, that's totally valid din, ang importante ay fed is best and na-enjoy mo ang motherhood nang hindi sobrang stressed. Pero basta to be safe, check with your pedia kung may specific concerns ka sa baby's weight gain or feeding pattern, kasi bawat baby iba talaga.