Page or Posts?

Hello,

I have not created a page yet and my posts appear as the first ‘page’ as their own pages. I have checked “front page displays posts” under Settings > Reading.

Is this ok to do (to have a blog with no “pages” but instead just show posts)?

I will be launching the blog on a subdomain so I’m pretty sure blog.mysite.com will look weird as blog.mysite.com/blog…

Can anyone offer some advice on whether I need to create a page and display my posts there instead of them just displaying freehand..