May I know How much feeds does one month old baby have a day? My baby is crying for milk every 2-3hr a day and I'm trying to delay longer hr in the night as really tired if I'm going back to work soon.

Totally normal if you're breastfeeding as you'd want to build up supply as well. At 1 month (for breastfeeding mummies) Aim 8-12 feeds in 24 hours. 1 month old is too young to be dragging their feeds. Feed on demand, bearing in mind that at 1 month old babies cry for a multitude of reasons