The best way to establish the number of qualifying years that you already have as well as the level of state pension that you can currently expect, is to contact the state pension forecasting team in Newcastle.
Their telephone number is +44 191 218 3600.
If you contact them, they will then send you the completed relevant form for you to sign and return to them.
(Remember, as with all communications with HMRC, to have your National Insurance number handy when you call.)
Alternatively, if you want to speed the process up, you can download the relevant form yourself and send it directly to them. You can find the form here.
The address to send it back to is:
State Pension Forecasting Team
The Pension Service
Newcastle upon Tyne
Note: Be patient. These guys don’t move quickly, so allow them a few weeks to get back to you.