Combine original site with added WordPress site…

Hi – we had a site built by a developer earlier this year that works fine. Later we added a WordPress installation to this site – I placed the wordpress site at https://www.mydomain.com and left the original site at https://www.mydomain.com. I’d like the blogs to show up on an http page in the main site (don’t mind if the wordpress login stays at the https address). How do I do this? Id there a ‘target’ page somewhere in wordpress that I can edit?
Sorry to be such a newb!!
thanks
Max