You will not have a PebblePad account unless one has been requested and created manually.

Students: A member of the teaching team will contact the Learning Technology team with a list of all the students in your cohort and the accounts will be created in a batch. You, and your classmates, will receive an email from PebblePad with details about how to log in. Make sure you look out for the email including checking the junk folder. Make sure you log in as soon as you can once you receive the email, and choose your own memorable, secure password.

Tutors: If you are a new member of staff, you are requested to book a PebblePad Training session with your Learning Technologist. Your account will be created for you on the day of your training session.

Mentors in Practice: Those working with students in work-based settings will need to request their PebblePad accounts from the Health Placements Team. The request form is here: https://mypad.northampton.ac.uk/placements/2015/08/14/how-to-get-a-mentor-account 
Some much smaller subject areas do not require you to complete the form, so please check with the lecturer if you are not sure.