I dunno about foods to eat, but depending on your cycle, its best to have intercourse two to three days before you ovulate! And if for instance your cycle, which is the first day of your last period, to the first day of your next period is the number of days in your cycle, and an avarage cycle is 28 days... (mine is 34.5 days long) so everyone is different, if you don't know you can look back on the past months or go to a site that can keep track of it for you, then usually you ovulate around day 14 (with a 28 day cycle) and its better to have intercourse a few days before you ovulate. Good luck to you, I am also ttc and its going on 6 months for me, with no luck yet, but the more I learn, the closer I feel I am getting to concive!