Rethink your diet (and make your partner do the same). Certain foods are great for fertility, while others can significantly reduce your chances of getting pregnant. Do eat foods containing vitamin C and antioxidants, as they can reduce stress and may boost male and female fertility. Avoid alcohol and caffeine. Both reduce female fertility levels and sperm count, so as much as it pains you to give up your morning latte and after-work cocktail, cutting it out will help you get pregnant.