Can i get a fertility test?

I am 26 I live in northern Ireland and my fertility is playing on my mind and as I suffer depression it can get me down allot at times. My sperm hasn't changed in terms of appearance but my last relationship last quiet a few years and we didn't use any contraception except "pulling out" if you want to say (sorry for the crude description) but I just cant help but wonder how we didn't get pregnant my relation ship has now ended a few years and I am now in a new relationship. We are not trying to get pregnant but it still plays on my mind and my question is can i get a fertility test with out "having to try for a year or so) ??