Bowel movements

Jordinn

While I was breastfeeding my son was pooping numerous times a day every day, I started giving him formula a few weeks ago and still giving him breastmilk at times, he only poops every so often. He hasn’t had a bowel movement since Saturday, so it’s been 4 almost 5 days.. he’s not fussy for the most part, and he farts often but when he does it’s almost like he’s doing it with force and trying to poop. I’ve noticed his belly is more firm.. what can I do so he can have some relief and have a bowel movement 🙁