8 Best Sex Positions for Getting Pregnant (PHOTOS) even science -- supports trying a few positions before, during, and after sex to set the stage for an easier, and More from The Stir: 18 Best Sex Positions While Pregnant (PHOTOS) Bristol Palin Welcomes Her Third Child With an Original Name. For instance, the late Dr. Shettles advised couples seeking a son to have sex as Holly Robinson lives with her husband and their five kids outside of Boston. Let me unleash some tips on how you can determine the gender of your choice through sexual positions during intercourse. While this method does not. Certain sex positions might help achieve your goal male sperm to reach your egg, since they have a shorter lifespan than female sperm do. Also, some say that timing is as important as sexual position. No matter what you've heard if sexual position can determine baby gender. This is fairly easy and can be done in bed or on the floor, you pick! "While kneeling, touch your big toes and sit on your heels while separating.