So frustrated! *Rant*

I'm 20 weeks so now I am starting to learn everything about the 3rd trimester, labor, life after baby arrives, the works. I read articles and watch videos mainly. No heavy reading. Every single time I ask my SO to look at something or listen to something he says no that he doesn't want to hear it. I tried talking to him about a birth plan and he said I needed to calm down and just take it as it comes! I feel like I'm going through this pregnancy alone for the most part and that when it's time to deliver he's going to be clueless and stress me out even more. I don't know what to do anymore. Has anyone else had to deal with this?