Is this normal?

My baby is 5 weeks 5 days and he just seems so uncomfortable! He grunts and gets red in the face like he’s pushing but nothing happens. This morning he had a huge poop and he’s had very little “skid mark” type poops today. He’s had wet diapers.

I’m just concerned about how he pushes and pushes and nothing happens but he seems so uncomfortable! Is this normal for this age?