It is possible to go live, or publish your blog content, without a hosting provider. However, this might not be the best solution for you if you want to grow your blog.
A hosting provider can help you manage your blog, add features and functionality, and keep your blog up-to-date. Additionally, hosting providers can help you find new readers and potentially increase your revenue.
Ultimately, it is important to weigh the pros and cons of going live without a hosting provider before making a decision. If you decide to go live without a host, be sure to research the best options available and make sure that you are prepared for the challenges that will come with publishing your content online.