Depression after having kids is real

I don't think anyone talks about postpartum depression in fathers enough. I love my son more than anything but I've been feeling this heaviness that won't go away. I have no energy, I'm irritable with my family, and I just want to be alone all the time. Started therapy last month and it's helping but man, I wish I had talked to someone sooner. If any other dads are feeling like this, you're not alone and it's okay to ask for help.