I totally agree with @TheKnight as to seeing a doctor. It's better to know what the problem really is and find a solution rather than waiting and not knowing why you're not conceiving. Do not lose hope. We have a family friend who also waited for a baby for years. Eventually, they decided to adopt a baby boy. A year or two from adopting a child, the woman got pregnant (10 years to be exact), and not just once but twice! They now have three grown up kids - 1 boy and 2 girls, and they very much love each other.