Cashier Always Returns True when checking Subscription()

I'm problem going about this the wrong way, and wanted to see how others are solving this:

• A user signs up and gets 30 days trial without having to enter credit card.
• User should be prompted for credit card when trial expires.

I have registered the user and set them up with the respective subscription that includes a trial period as provided by the plan configured on Stripe.

However, I am unclear as to how to check if that trial is expired. I was thinking of checking Auth::user()->subscribed() and Auth::user()->onTrial(), but they don't seem to change if I update the trial_end_date to test what happens.

Here's my registration code:

        $user->subscription('premium-monthly')->create(null, [
            'email' => $user->email,
            'metadata' => [
                'firstName' => $user->first_name,
                'lastName' => $user->last_name,
            ]
        ]);

And then I'm checking in my master view:

if (Auth::check()) {
        if (! Auth::user()->subscribed()) {
// show payment form
        }
}