Different areas different rules but you may find its only if you have no children between you. You will need to see your GP for referral and support so your best bet maybe for both of you to attend - they will also be able to tell you what the rules are and sort out any investigations needed before you get to IVF.
Could try Human Fertilization and Embryology Authority
http://www.hfea.gov.uk/cps/rde/xchg/hfea
Will give you a list of licenced clinics how to choose about infertility and funding