You can test your registration form to see it as your students/families will see it by clicking the People menu on the left side of the screen and then click Add Demo Student (see below screenshot). You will then create a demo student. Once you complete the profile information, you will see the registration form to complete.
Removing a Demo Registration
After you create a demo student and registration, you can remove it by going back to your admin account and clicking People on the left side of the screen and then Students. Find the demo student you added and click the red trash icon (see below screenshot).