If you have not signed up yet.. ...you can go here to register Pampers Gifts to Grow
What is Pampers Reward Program?
The Pampers Gifts to Grow Rewards Program rewards you every time you choose Pampers diapers, training pants and wipes for your growing baby.
To start, simply collect the codes from all your Pampers purchases. To see the points add up in your account, just sign up with Pampers.com and enter codes on Gifts to Grow Rewards or on your mobile phone. After that, you can redeem your points for items in the Gifts to Grow rewards catalog.