As to whether there's a guaranteed way to influence your chances have a boy — no, there isn't. Short of medically implanting an embryo that is known to be a boy, there are no guarantees when it comes to the sex of your baby.
Currently, the only guaranteed way to select the sex of your baby is through preimplantation genetic diagnosis (PGD), a test sometimes performed as part of in vitro fertilization (IVF) cycles.
According to this method, to increase the chance of having a girl, you should have intercourse about 2 to 4 days before ovulation. This method is based on the notion that girl sperm is stronger and survives longer than boy sperm in acidic conditions. By the time ovulation occurs, ideally only female sperm will be left.
It's all about Dad's genes
A man's X and a woman's X combine to become a girl, and a man's Y combines with a woman's X to become a boy. But if the sperm don't have equal Xs and Ys, or if other genetic factors are at play, it can affect the sex ratio.
Men determine the sex of a baby depending on whether their sperm is carrying an X or Y chromosome. An X chromosome combines with the mother's X chromosome to make a baby girl (XX) and a Y chromosome will combine with the mother's to make a boy (XY).
Take specific vitamins and supplements.
“The more minerals like calcium, magnesium, and potassium you have in your body, the more likely you are to produce a girl,” she explains.
A study published in the Reproductive BioMedicine Online Journal found women who kept a strict diet high in calcium and magnesium and low in sodium and potassium greatly increased their chances of conceiving a girl. Examples of foods high on the 'girl friendly' list include cheese, milk, butter, nuts and beans.
Biological sex in healthy humans is determined by the presence of the sex chromosomes in the genetic code: two X chromosomes (XX) makes a girl, whereas an X and a Y chromosome (XY) makes a boy. In this way, it is the presence or absence of the Y chromosome in a healthy human that differentiates boy from girl.
The X and Y chromosomes are called “sex chromosomes” because they contribute to how a person's sex develops. Most males have XY chromosomes and most women have XX chromosomes. But there are girls and women who have XY chromosomes. This can happen, for example, when a girl has androgen insensitivity syndrome.
Evening Primrose Oil and Omega 3 fatty acids can help the Y chromosome by increasing the production of thinner cervical mucus (the clear, egg-white consistency), which protects the weaker male sperm so they can penetrate through the cervical canal faster than the female sperm, says Randine Lewis, PhD, founder of the ...
Some clinics are advertising gender selection to parents for up to $20,000. It's becoming a more common practice, as companies are subsidizing the cost of IVF for medical reasons.
The only way to guarantee a boy or girl? Currently, the only way to guarantee sex is a technique called preimplantation genetic diagnosis (PGD), where a single sperm is implanted in the egg in a type of in vitro fertilization called ICSI (intracytoplasmic sperm injection).
Most parents will not desire a male or female child in the sense of their genitalia. Rather, they will want a child who fulfils socio-cultural definitions of 'boyhood' or 'girlhood'. This is problematic because it assumes our sex determines our adherence to gender-based social norms and behaviours.
Klinefelter syndrome is associated with a group of chromosomal disorders in males in which one or more extra X chromosomes are present. Males with the classic form of the disorder have one extra X chromosome. Males with variant forms of Klinefelter syndrome have additional X and/or Y chromosomes.
Based on the sole criterion of production of reproductive cells, there are two and only two sexes: the female sex, capable of producing large gametes (ovules), and the male sex, which produces small gametes (spermatozoa).
About 1 in 20,000 men has no Y chromosome, instead having 2 Xs. This means that in the United States there are about 7,500 men without a Y chromosome.
Nature is designed to favour the conception of boys from September to November and girls from March to May because of an evolutionary mechanism aimed at keeping the overall sex ratio as near to 50:50 as possible, the scientists said.
According to Shettles, to conceive a girl you need to:
Have sex 2.5 – 4 days before you ovulate. Timing sex is the key here, so it would help if you keep an ovulation chart where you can predict what days of your cycle you are likely to ovulate and have lots of sex before you release an egg.
The Shettles method of sex selection is based on the different environments that are prominent throughout the female reproductive tract during the menstrual cycle. The most important aspect of the method is timing sexual intercourse within the menstrual cycle according to which sex the couple desires.
Parents should not be able to choose from a menu of preferred traits for their children. This could hinder children from carrying unique genes and could thus eventually reduce genetic variation which is necessary for the human species to continue and live when environmental changes suddenly take place.
Checking With Your Provider About Insurance Coverage
PGS costs for gender selection are not typically covered by insurance. You should review your insurance policy and speak with your health insurance carrier to determine your exact coverage for IVF and PGS prior to beginning treatment.
Is gender selection legal? Yes, gender selection is legal in the United States. However, it is not legal in some other countries.