Subscription and Membership 2 Pro

I want to set up a Subscription based site, I am using Stripe and PayPal Subscription plans, but want to offer 90 days free, I don't want to use the built-in Trial Period on Membership 2 Pro, as I think people will just drop off!

So if I use the Stripe and PayPal Subscription plans with a built in 90 days free, will the payment go through free for 3 months, then start billing?

many thanks!