How to Choose Your Baby’s Gender: Scientifically Proven Methods

Introduction: Can You Really Choose Your Baby’s Gender?

Many prospective parents hope to influence the gender of their baby—whether for personal balance, cultural traditions, or genetic health reasons. While biology normally gives a 50/50 chance, science has uncovered ways to improve the odds or even guarantee the outcome.

This guide covers proven, medically-backed methods for gender selection, including both natural approaches and advanced reproductive technologies.

Table of Contents

• IVF with PGT: 99% Accuracy
• Sperm Sorting: Formerly Used, Now Discontinued
• Diet and Caloric Intake
• Timing Intercourse with Ovulation
• IUI: No Effect on Gender
• Debunked Myths: What Doesn’t Work
• Summary: What You Should Know
• Get Expert Guidance at Surrogacy4All
• Frequently Asked Questions

1. IVF with PGT: The Gold Standard for Gender Selection

In-vitro fertilization (IVF) combined with preimplantation genetic testing (PGT) is the only medically guaranteed way to choose your baby’s gender. Here’s how it works:

• Embryos are created in a lab by fertilizing eggs with sperm.
• Each embryo undergoes chromosome testing to determine sex.
• A healthy male (XY) or female (XX) embryo is selected for implantation.
• Success Rate: Over 99% for gender accuracy.
• Legality: Legal and practiced in most U.S. states.
• Best for: Families with gender preference or genetic concerns.

Considerations:

• Requires hormonal treatments and minor procedures.
• Can be expensive; not all insurance covers it.

2. Sperm Sorting Using Flow Cytometry (No Longer Available in the U.S.)

This method separated X-bearing (girl) and Y-bearing (boy) sperm using a process called flow cytometry, based on their DNA content.

Success Rate: Around 75% chance of selecting a boy.

Important Notes:

• Discontinued in the U.S. over 15 years ago due to concerns about chemical exposure during the process and potential sperm DNA damage.
• Still used in limited international settings with caution.

3. Diet and Caloric Intake

Some research suggests that a woman’s caloric intake and diet at the time of conception might influence the gender of the baby.

Key Study:

• A study found that women who ate breakfast cereal daily were 87% more likely to have boys.
• Higher caloric intake may favor male embryos.

Pros:

• Natural, non-invasive, no cost.

Cons:

• Not guaranteed—may only slightly increase odds.

4. Timing Intercourse Around Ovulation

Popularized by the Shettles Method, this theory claims:

• Y-sperm (boy) are faster but more fragile.
• X-sperm (girl) are slower but more durable.
• Intercourse close to ovulation may favor boy sperm.

Scientific Verdict: Studies have shown no statistically significant effect on gender ratios.

5. Intrauterine Insemination (IUI)

IUI is a fertility procedure where sperm are directly placed into the uterus during ovulation.

Does it affect gender?

• No. Clinical studies confirm a consistent 50-50 gender ratio following IUI.

What Doesn’t Work: Debunked Gender Selection Myths

Many old wives tales and internet hacks claim to help you choose your baby’s sex—but science disagrees.

Common Myths Include:

• Spinning sperm in a centrifuge
• Specific sexual positions
• Moon phases
• Vaginal pH changes
• Herbal remedies or over-the-counter pills

None are proven effective.

Summary: What Actually Works?

Method	Effectiveness	Availability	Risk Level
IVF with PGT	(99%)	U.S.  Global	Moderate
Sperm Sorting	(~75%)	Not in U.S.	High
Diet	★★☆☆☆	Global	None
Timing	★☆☆☆☆	Global	None
IUI	No Effect	Global	Low

IVF with PGT remains the most reliable and medically supported method.

Get Expert Help from Surrogacy4All

At Surrogacy4All, we support families who wish to explore gender selection as part of their journey.

• Phone: (212) 661-7673
• Email: info@surrogacy4all.com
• Book a consultation at www.surrogacy4all.com/contact

Frequently Asked Questions

Q: Is gender selection legal in the U.S.?

Ans: Yes. IVF with PGT is legal in most states.

Q: What is the success rate of IVF for gender selection?

Ans. Near 100% when using PGT.

Q: Is sperm sorting still available?

Ans. No. It has been discontinued in the U.S.

Q: Are natural methods effective?

Ans. A: They may shift odds slightly but aren’t reliable.