Seriously? How's your health?
One of the best things you can do to boost your fertility chances is to be in GOOD health. Eat a healthy diet consisting of organic, whole foods as close as they come from the earth as possible. Cut the processed stuff out of your diet. Eat less sugar. You'll find that just eating healthy will give you greater energy and boost your overall mood. Not to mention that most of us could always stand to loose a few pounds! Weight loss is an excellent way to promote regular ovulation as well.
Exercise regularly to boost your fertility. Even if you don't have time to hit the gym daily there are many ways to squeeze in subtle exercise into your daily routine. If you work in an office there are many "desk workouts" available on you tube. Other ways to work in exercise: walking, ballet warm ups at the kitchen counter while preparing dinner, yoga, dancing.
On my journey, this is one of the last things that I worked on and it should have been the first. I found that when I started eating the right foods and cutting out soda, chips, processed foods, fast food (which was tough for me - I love my McDonald's!), and caffeine, and started exercising daily - I started ovulating and conceived!
So, the moral of the story? Before you attempt all the medical fertility interventions...ask yourself how's my health? If it's not that great, then make getting healthy a priority - you may find that you fall pregnant while focusing on your health!