When you enroll in a Nanodegree program, your free trial begins immediately. During your free trial period, you have access to moderated forums for your program, and all features that come with a paid enrollment. You will not be able to graduate from the program and earn a credential however, while on your free trial. We highly recommend taking advantage of as many features as you can during the free trial so you can make an informed decision about whether the program is a good fit for you.
If you opt to continue the program, you don’t have to do anything further. Your card will automatically be charged. You can cancel your subscription anytime during the free trial.