Constipated?

Kayla • Mom of 2 🧒🏾💙 👶🏾💙

My son is 13 weeks/3 months and has slowed down on how much he poops. He is EBF and know that’s normal but he still is grunting sometimes (sounds like trying to get poop out) and then gets frustrated. Is that normal? Is he just grunting because he’s starting to make lots of noises or is he constipated?