Give it time, you have been here less than a week.
Don't stress about this either. It has nothing to do with traffic, visitors, is my hub good enough? etc.
The only issue you need to be aware of is if you have outbound links for a hub set as a hyperlink (click on the link and taken to a new web page) this is known as a dofollow link.
When a hubpage has a rank score of less than 75, dofollow links become no follow. (which would mean someone will have to copy and paste the web link to go to that page, manually)