madalina13 on "Blog posts are published but not all show up on the main page"

Hi, please help me figure out what is wrong( http://www.lifecoachmadalina.com)
Starting last week I'm running into a problem with my blog, where even though I have several posts published in my admin section, when I go to the main page of the blog only 5 of them show up. If I try to add a new one, it will publish on the main page but it will take down one of the previous ones, and I am still left with 5..
Helppp