Hello @angelamaree,
Thanks for providing the information. I have logged in and I found out that you only have 3 posts. Two of them are published and the other one is n draft. When I view your blog index, both of the posts are there.
One thing to keep in mind is that since you are using SiteGround, after making site changes and adding posts, please clear your site cache or at least disable the supercacher in your hosting panel. The SuperCacher is developed by SiteGround exclusively for their customers. It increases the number of hits a site can handle and boosts the website loading speed. The SuperCacher includes 4 different caching options for maximum optimization of your websites. You can access the tool by clicking on the SuperCacher icon in your cPanel.
For more information about this, please check it out here: https://www.siteground.com/tutorials/supercacher/supercacher_intro.htm
Hope this helps.