What is the main cause of infertility?

i've heard stress is a major reasons. My parents had a hard time conceiving me too. And it's because both of my parents at that time held very stressful jobs. To add to that, dad smoked heavily. Which in a way killed his sperm count

Infertility is defined as not having been able to conceive after at least 12 months. A miscarriage is hard to deal with and if not further pregnancy occurs it often makes a couple feel guilty. There are many different reasons for infertility and they can lie with the man, with the woman or with both partners. Without knowing the exact reason why you haven't conceived again, it is difficult to suggest treatments. Adjusting your lifestyle by healthy nutrition, losing weight, councelling, stopping to smoke and reducing stress can help, but there are still many cases of unexplained infertility. Often IVF is the only solution if you don't want to give up your dream.

I know that miscarriage is really sad. The fact that your wife did get pregnant means she is not infertile. It took her three years to get pregnant so that was a ong time. I suggest she eats a healthy diet, does the right amount of exercise and doesn't get stressed. Many ladies have given up trying to get pregnant and taken a vacation. It worked for them because of the lack of stress. I know a lady that tried to get pregnant for eight years, gave up and then got pregnant with twin boys. Good luck.