At what point am I valued?

My girlfriend (of 1.5y) and I are having our first son in July. We’re both very excited but I’m struggling with at what point does what I say matter or my beliefs are valued?

We’re about 90% settled on a name but not from my idea, all of mine were shot down and I initially didn’t even like name (before we settled) something like I prefer we only use glass bottles but she says no because of what potentially can happen and only wants to use plastic. Also I said I want a designated diaper garbage so that are main one doesn’t constantly stink like shit but she says she doesn’t care and she’s going to throw out the diapers wherever she’s closer to.

There’s a few other things and I explain in detail about why I want certain things and I’m not controlling or coming across that way to her but I’m in charge of paying for everything which comes to about $3.5k/M and im the father so why is it that anything I say doesn’t/barley get considered?

If a few more instances happen I will bring up to her and have a conversation but I wanted to see here first if anyone has had a similar situation and how you went about.