There is a big difference between your store showing up on the first page, and it showing up on Google.
To see whether or not Google indexed your page, type site:yourwebsite.com into the search bar. If you see your website in the search results, this means that you are on Google. If you don't, then Google has not crawled your page yet, and you'll have to keep waiting. You can speed up this process by adding your website into your Google Search Console.
Getting on the first page will require active SEO work, that may take months depending on the competitiveness of your business.