If you have not yet done so, we encourage you to activate your digital tax account with HMRC (https://www.gov.uk/personal-tax-account), so that you can review your National Insurance Contribution (NIC) record, and decide if you wish to make a voluntary payment.
To qualify for the State Pension, it is necessary to have made 10 years of NI payments, but to qualify for a full state pension entitlement, you need 35 qualifying years of contribution history.
If you are short of qualifying contributions then you may be able to “top up” certain years before the end of March 2019, which could ensure that you receive a higher state pension upon retirement.