baby daddy question

FTM here and I just need to know if this is common behavior. I'm 27 weeks and my hubby has shown little to no interest in my pregnancy. He doesn't care to touch my belly - I have to physically put his hand there which results in him wining about it. He hasn't read a single thing on pregnancy or labour, doesn't go to midwife appointments, doesn't go to prenatal classes with me. I try to involve him but he just doesn't show much interest in my pregnancy. Is this normal for men?

To his defence he did get excited about the nursery and dedicated a lot of time and energy into putting it together. He also loves talking about what he's going to do and teach our LO so there is excitement there.