Cashier Subscription Help

I am using Laravel's Cashier with Stripe and running into a issue / question. The run down: I have 3 plans/subscriptions to select from each with different options to suit different users needs. Each plan has a 14 day free trial, but I am not taking the credit-card info at the time of registration / plan selection.

Once logged in there is a billing section for the user to enter billing / payment info but during their trial period they have access / permissions based on the selected plan so I need to save the plan_id to the user when registering.

https://laravel.com/docs/5.3/billing#without-credit-card-up-front

But I need to create a subscription to know what the user is allowed to do / access / limits and such.

What is the best way to approach this scenario?

Thanks,

Dave