It is a good idea to have intercourse every other day around the time you ovulate (day 10, 12, 14, and 16). Remember, every woman is different, and may not ovulate exactly on day 14. It is preferable to have intercourse every other day rather than every day so that sufficient sperm will be available. To increase your chances of the egg becoming fertilized, do not douche or use lubricants immediately before having intercourse.