Hi JL12
For the period that you were in full time education you may be able to pay voluntary class 3 contributions.
You may wish to call our National Insurance Helpline on 0300 200 3500 and they will be able to advise you of the amounts required and how to pay them.
Before you pay voluntary contributions you may wish to check your current and future entitlement to a British State Pension.
More details are given at:
Application for a State Pension forecast.
Thank you.