Nae I was a bit the same, I spent many a time during the pregnancy wondering if we'd done the right thing. Maybe 2 was enough. Maybe I should have tried hard to gender sway. Maybe , maybe, maybe.
I didn't get particularly attached during the pregnancy, I just really wanted it over.

BUT....I am now so over the moon and in love with my third beautiful daughter I wonder how I could have ever doubted it. Everything changes when you can hold them, see them and smell them.

It's ok to not be thrilled about your pregnancy, even though it is planned and very much wanted.