Trying to conceive need advice

Hi ladies. I have been trying to conceive from past 4 months with no luck. So this month I have decided to do whatever I could to have more chances of pregnancy. Because I have only this month I can completely try whatever I could, next month my in laws are visiting us so we may not have much time over her. I bought opk strips to predict my ovulation. What else should I do to increase the chances for this month. Please suggest if I have to follow something. Really need your input.