Shettles Method Gender Calculator: Does It Really Work?

April 21, 2025 3 min read

Are you dreaming of a baby girl or a bouncing baby boy? Many couples explore various methods to sway the odds in their favor. One popular, yet controversial, approach is the Shettles Method. Let's dive into what the Shettles Method entails and whether a shettles method gender calculator can actually help you plan for the gender of your child.

Plan Your Conception, Predict Ovulation

Use our Ovulation Estimator to find your fertile window and increase your chances of conceiving.

Estimate Your Fertile Window Now! →

What is the Shettles Method?

The Shettles Method, popularized by Dr. Landrum B. Shettles, suggests that the timing of intercourse in relation to ovulation, along with factors like sexual position and depth of penetration, can influence the sex of your baby. The core idea is based on purported differences between X (female) and Y (male) sperm.

The Theory Behind the Shettles Method

The Shettles Method operates on a few key assumptions:

  • Y Sperm are Faster, but Less Durable: Y sperm are believed to be faster swimmers but more fragile and shorter-lived than X sperm.
  • X Sperm are Slower, but More Durable: X sperm are thought to be slower but more resilient and longer-lived.
  • Vaginal pH Matters: The vaginal environment's pH is believed to favor one type of sperm over the other; Alkaline environments favor Y sperm, while acidic environments favor X sperm.

The Shettles Method for Conceiving a Boy

If you're hoping for a boy, the Shettles Method advises the following:

  • Time Intercourse Close to Ovulation: Have sex as close to ovulation as possible, ideally on the day of ovulation or shortly after.
  • Deep Penetration: Use sexual positions that allow for deep penetration, depositing sperm closer to the cervix.
  • Simultaneous Orgasm: The female should orgasm at the same time as the male, or before, to increase cervical secretions and vaginal alkalinity.

The Shettles Method for Conceiving a Girl

For those dreaming of a daughter, the Shettles Method suggests:

  • Time Intercourse 2-3 Days Before Ovulation: Have sex several days before ovulation and abstain from intercourse closer to ovulation.
  • Shallow Penetration: Use sexual positions that allow for shallow penetration, depositing sperm further from the cervix.
  • Avoid Female Orgasm: The female should avoid orgasm to maintain a more acidic vaginal environment.

Does a Shettles Method Gender Calculator Work?

While the Shettles Method and the idea of using a shettles method gender calculator are intriguing, it's crucial to understand that scientific evidence supporting its effectiveness is limited. Studies have largely debunked the claims of significantly influencing a baby's sex through timing and position.

It is important to have a precise understanding of your ovulation cycle to even attempt to influence anything. That's where the Ovulation Estimator can help you pinpoint your fertile window. Based on your cycle length and last period, our calculator gives you an interactive six-month calendar that color-codes your most fertile days, including your peak ovulation day!

The Reality of Gender Selection

The sex of a baby is determined by the sperm that fertilizes the egg, which carries either an X or Y chromosome. Statistically, you have close to a 50/50 chance of conceiving a boy or a girl with each pregnancy.

Alternatives to the Shettles Method

For couples who desire more control over gender selection, options like preimplantation genetic diagnosis (PGD) during in vitro fertilization (IVF) offer a higher degree of accuracy. However, these methods are significantly more involved and costly.

Conclusion

While the Shettles Method provides a framework for attempting to influence your baby's sex, remember that it's not scientifically proven. Approaching family planning with an open mind and focusing on a healthy pregnancy is always the best approach. You can use our pregnancy calculator after conceiving to track your journey!