Rev up your engines Y sperm, this is all about you. It’s a race to the egg, and we’re rooting for team Y! We’re going to use the natural characteristics of the Y sperm to discover the best sex positions to conceive a baby boy.
Basic biology review: A baby’s sex is determined by his chromosomes. He gets half from his mother (via the egg) and the other half from his father (via the sperm). Mom’s egg always contribute the same sex chromosome, an X. Dad’s sperm can contribute an X chromosome or a Y chromosome.
- If a sperm with the X chromosome fertilizes the X egg, you will conceive a baby girl.
- If a sperm with the Y chromosome fertilizes the X egg, you will conceive a baby boy.
Y sperm are fast swimmers, extra sensitive to acidic (low pH) environments, and are not as hardy as X sperm. Knowing the strengths and weaknesses of Y sperm helps us decide what sexual positions are best to conceive a baby boy.
How to Conceive a Baby Boy
Deep Penetration The best sex positions to conceive a baby boy will get the sperm as close to the cervix as possible. Your cervix is the opening to your uterus and the doorway to the egg. It is located at the deepest part of your vagina.The Y sperm can beat the X sperm in a foot (tail?) race. We want to make the distance between the point of ejaculation and your cervix as small as possible. The Y sperm do better in a sprint, not a marathon!
Sex Positions that Allow Sperm to Pool Near the Cervix will Help You to Conceive a Baby Boy
Rear entry (commonly known as “doggy style”) is a good deep penetration position.
Another position to try is man on top with woman’s legs and knees raised to her chest. This takes a little more flexibility then rear entry, but the closer you can get your knees to your chest, the deeper the penetration will be.
Sperm Near Cervix
When your partner ejaculates, be sure he is thrust in as deep as possible, and then have him stop thrusting to allow the semen to be deposited as close to your cervix as possible. Probably not as much fun as recreational sex, but this is a great way to get pregnant with a boy!
Only Use Sperm-Friendly Lubricants
Most personal lubricants on the market are not sperm friendly, particularly because they make your vagina more acidic. Y sperm are extra sensitive to acidic conditions and we don’t want to give the X sperm any advantage by killing off the population of Y sperm. Don’t use personal lubricants when you are trying to conceive a baby boy unless they are specially formulated to be safe for use while trying to conceive.
If you don’t produce enough cervical mucus naturally, PreSeed may help you conceive a baby boy by making your vagina more alkaline and helping to move the sperm quickly though the cervix and towards your egg. Anything that can get the speedy Y sperm to the egg more quickly may increase the odds that you will conceive a baby boy. Click to Learn How to Increase Cervical Mucus to improve your chances of having a boy.
Whatever sex position you choose to conceive a baby boy, make sure it’s really good sex! Unlike chemical lubricants, the natural lubricants that your body makes when you are sexually aroused are terrific for Y sperm! If your vagina becomes very wet during sex with your natural cervical mucus, the pH will become even more alkaline and Y sperm friendly.
Also, cervical mucus acts as a “sperm super highway”, protecting and directing sperm to your egg. Remember that Y sperm are faster then X sperm, so anything that can make the journey faster will improve your chances of having a boy. How to Make More Cervical Mucus
Not too Early, Not too Late
Have all this great, deep penetrating sex as close to your ovulation day as possible. Y sperm are fast, but they don’t stay active and healthy as long as X sperm. If you have sex a few days before you ovulate and then stop, it’s likely that many of the Y sperm will have become inactive leaving only X sperm to fertilize your egg when it emerges. To pinpoint ovulation, be sure to review our page on recognizing signs of fertility and try our ovulation day calculator.
To increase your chances of conceiving a baby boy, have sex only on the day you are ovulating and on the two to three days following ovulation. Use ovulation predictor kits or simple ovulation predictor strips to accurately predict your ovulation day.
If you want to have sex on the days before you ovulate, use a barrier method of birth control (i.e., condoms without spermicide) or choose non-penetrative sex.
We have more tips on conceiving a baby boy on the Gender Selection page.