You won't see your hub in your profile yet because you haven't published it yet. To see your unpublished hub, go to "my account" under your HubPages username. You'll be brought to a list of all your hubs (whether published, unpublished, featured, not featured). You should be able to find your hub there.
Once you publish your hub, you can now see it under "my content" in your profile but only if your hub is featured. This is unless your profile is set to show all the hubs that you have published whether featured or not. To change your profile settings regarding the showing of hubs, just go to "my profile" and then click on the "edit profile" button. From there, just scroll down to the page and, under "Show only Featured Hubs on my profile", just select either "yes" or "no". Hope this helped.