Predetermining The Sex of Your Child

The following methods are the current theories regarding gender selection while trying to conceive.

The Shettles Method

The Shettles, by Dr. Landrum Shettles and David Rorvik, authors of How To Choose the Sex of Your Baby, is the method most used and most effective. According to this method Y-chromosomes (for boys) move faster but don’t last as long as X-chromosomes (for girls), Dr Shettles says it makes sense to have sex as close as possible to ovulation if a boy is what you want. If you try to conceive two to four days before you ovulate, you’ll most likely have a girl.

For more in depth information on choosing the sex of your baby with the Shettles Method, you can visit the following pages:

  • How to Conceive a Girl

  • How to Conceive a Boy

The Whelan Method

Elizabeth Whelan, Sc.D., doesn’t agree with the Shettles method and suggests the opposite. Whelan says if you want a boy, have intercourse four to six days before your basal body temperature goes up.

If you want a girl, don’t make love until two to three days before ovulation.

The Ericsson Method

 In 1975, Ronald J. Ericsson, Ph.D. began clinical studies to determine whether such enriched sperm samples would result in offspring of a desired gender. Today the Ericsson method is used in approximately half of the centers in the U.S.

 Dr Ericsson devised methods by which X and Y sperm can be separated through filtering processes. This sperm sample is used for insemination when ovulation is anticipated. The enriched sperm sample is then available to fertilize the egg.

The Billings Method

 A daily record of observations made at the vulva is essential for the Billings Ovulation Method. The recording is made in the evening of the most fertile characteristics noticed throughout the day. The first record, which is begun immediately, is usually of 2 - 4 weeks duration and is made without any genital contact so that the observations will not be confused by any secretions due to intercourse or contact. Your chart provides information for your husband as well, and it helps open the door for communication and decisions during these times.

A helpful question to an anxious woman is to ask her how she knows when menstruation begins. She will readily admit that she both feels and sees the bleeding as it arrives at the vulva. The observations of sensation and appearance will then be applied to all other observations the woman makes at the vulva. As the days go by she will recognize her patterns of fertility and infertility, according to the mucus patterns.

How To Conceive a Girl

The Shettles Method

Over the last twenty-five years, thousands of couples have turned to the Shettles method for learning how to conceive a girl. And thousands have been blessed with the girl they hoped for. In fact, the properly applied Shettles method gives couples at least a 75 percent success rate. Some researchers have reported success rates up to 90 percent!

In his book, Dr. Shettles discusses the issues which will help you learn how to conceive a girl. Some of the basic ideas are listed below, but you will need to purchase the book in order to get the full details as Dr. Shettles goes it to much more detail. Failure to follow his instructions lessens the chances of you conceiving a girl.

The Shettles Method is based on the fact that the Y chromosome bearing sperm ( boy sperm ) are smaller and less robust but move faster than the larger X chromosome bearing sperm ( girl sperm ).So based on this fact, the Shettle Method recommends the following to help you conceive a girl.

How to Conceive a Girl

Determining the Time of Ovulation

Determining when you ovulate is vital when you are learning how to conceive a girl. Shettles recommends that you have sex 2 1/2 to 3 days BEFORE ovulation in order to increase your chances of conceiving a girl. Having sex closer to ovulation will dramatically decrease your chances of conceiving a girl. The timing of intercourse in relation to ovulation is a vital factor in increasing your chances of having a girl.

Shettles suggests three specific ways in which to do this.

1) Charting Cervical Mucus

Dr Shettes goes into full detail on how to chart your cervical mucus in Part Three of his book, How to Choose the Sex of Your Baby. You can download a blank CM chart in two different formats: PDF or Excel Spreadsheet.

With this method of determining when you ovulate, you access your cervical mucus on a daily basis. Right before you ovulate, your cervical mucus should be very watery and very elastic. It’s consistency should be that of raw egg white. Charting for more than a month before you attempt to conceive a girl is recommended so you can be CERTAIN that you are ovulating on a specific day.

2) Basal Body Temperature (BBT) Charting

Shettles also suggests that you use BBT charting a long with charting your cervical mucus in order to gain as much information in order to pinpoint when exactly you are ovulating. He goes into full detail on how to accurately chart your BBT in Part Three of his book. You can download a blank BBT chart in two different formats: PDF or Excel Spreadsheet. This chart also includes an area to record your Cervical Mucus assessments.

In order to chart your basal body temperature ( BBT ) you will need to purchase a basal thermometer. Before you get up each morning, you will take your temperature before you do ANYTHING. Any activity can lead to innacurate temperature readings. At the time of ovulation, you will see a spike in your temperature which will indicate that you have already ovulated. Considering that you need to have sex 2 to 3 days away from ovulation in order to increase your chances of having a girl, you will need to chart at least two months before you can make good use of the information that your charting reveals

3) Using Ovulation Predictor Kits

The final way Shettles recommends for finding out the exact time you are ovulating is by using ovulation predictor kits. These kits detect when your body has released LH (Luteinizing Hormone), a precursor to ovulation. Dr. Shettles suggests testing twice a day in to make sure you catch the surge as early as possible. He recommends testing once between 11am and 3 pm and then again between 5pm and 10pm. When all factors are considered, ovulation will most likely occur about 24 hours after the time when you get a positive result for the lh surge on your ovulation predictor kit. Dr. Shettles offers indepth explanations on how to interpret the ovulation predictor kits in his book so be sure to read all the information he provides. 

Store bought ovulation predictor kits can cost quite a bit, but we offer them here at BabyHopes.com for a very reasonable price. You can read the product specification of our ovulation predictor kits on our product desription page.

Frequency and Timing of Intercourse

Shettles says in order to increase the chances of having a girl, you should have sex everyday from the end of your period up to 2 1/2 to 3 days before ovulation. After this point, do not have unprotected sex until several days past ovulation. 

Intercourse further away from ovulation favors the larger slower moving X (girl) sperm. The weaker Y (boy) sperm will die more quickly in the more acidic preovulatory vaginal / cervical secretions and by the time of ovulation there will be a much larger concentration of X (girl) sperm available to fertilize the egg.

Sexual Position

Shettles suggests that if you are trying to conceive a girl, shallow penetration from your partner, preferably with the missionary position, will deposit the sperm closer to the entrance to the vagina. This area is more acidic than closer to the cervix and acidity will work against the weaker “boy” sperm leaving more “girl” sperm available to fertilize your egg.

Sex and Orgasms

 When trying to conceive a girl, Shettles recommends that you don’t orgasm during sex as the body produces substances after orgasm that makes the vaginal environment more alkaline, which favors the “boy” sperm.

 The contractions which accompany an orgasm help move the sperm up and into the cervix, giving the “boy” sperm an extra chance at being available when your egg is available for fertilization.

How to Conceive a Boy

The Shettles Method

The Shettles Method - How to Choose the Sex of Your Baby - Baby gender selection Over the last twenty-five years, thousands of couples have turned to the Shettles method for learning how to conceive a boy. And thousands have been blessed with the boy they hoped for. In fact, the properly applied Shettles method gives couples at least a 75 percent success rate. Some researchers have reported success rates up to 90 percent!

Dr. Shettles discusses the issues which will help you learn how to conceive a boy. Some of the basic ideas are listed below,. Failure to follow his instructions lessens the chances of you conceiving a boy.

The Shettles Method is based on the fact that the Y chromosome bearing sperm        ( boy sperm ) are smaller and less robust but move faster than the larger X chromosome bearing sperm ( girl sperm ).

So based on this fact, the Shettle Method recommends the following to help you conceive a boy.

How to Conceive a Boy

Determining the Time of Ovulation

Determining when you ovulate is vital when you are learning how to conceive a boy. Shettles recommends that you have sex as early as 24 hours before ovulation to no more than 12 hours past ovulation in order to increase your chances of conceiving a boy. Having sex too far in advance to ovulation will dramatically decrease your chances of conceiving a boy. The timing of intercourse in relation to ovulation is a vital factor in increasing your chances of having a boy.

Shettles suggests three specific ways in which to do this.

1) Charting Cervical Mucus

Dr Shettes goes into full detail on how to chart your cervical mucus in Part Three of his book, How to Choose the Sex of Your Baby. You can download a blank CM chart in two different formats: PDF or Excel Spreadsheet.

With this method of determining when you ovulate, you access your cervical mucus on a daily basis. Right before you ovulate, your cervical mucus should be very watery and very elastic. It’s consistency should be that of raw egg white. Charting for more than a month before you attempt to conceive a boy is recommended so you can be CERTAIN that you are ovulating on a specific day.

2) Basal Body Temperature (BBT) Charting

Shettles also suggests that you use BBT charting along with charting your cervical mucus in order to gain as much information as possible in order to pinpoint when exactly you are ovulating. He goes into full detail on how to accurately chart your BBT in Part Three of his book. You can download a blank BBT chart in two different formats: PDF or Excel Spreadsheet. This chart also includes an area to record your Cervical Mucus assessments.

In order to chart your basal body temperature ( BBT ), you will need to purchase a basal thermometer. Before you get up each morning, you will take your temperature before you do ANYTHING. Any activity can lead to innacurate temperature readings. At the time of ovulation, you will see a spike in your temperature which will indicate that you have already ovulated. Considering that you need to have sex as close to ovulation as possible in order to increase your chances of having a boy, you will need to chart at least two months before you can make good use of the information that your charting reveals.

3) Using Ovulation Predictor Kits

The final way Shettles recommends for finding out the exact time you are ovulating is by using ovulation predictor kits. These kits detect when your body has released LH (Luteinizing Hormone), a precursor to ovulation. Dr. Shettles suggests testing twice a day in to make sure you catch the surge as early as possible. He recommends testing once between 11am and 3 pm and then again between 5pm and 10pm. When all factors are considered, ovulation will most likely occur about 24 hours after the time when you get a positive result for the lh surge on your ovulation predictor kit. Dr. Shettles offers indepth explanations on how to interpret the ovulation predictor kits in his book so be sure to read all the information he provides.

Store bought ovulation predictor kits can cost quite a bit, but we offer them here at BabyHopes.com for a very reasonable price. You can read the product specification of our ovulation predictor kits on our product desription page.

Frequency and Timing of Intercourse

Shettles says in order to increase the chances of having a boy, you should have sex no earlier than 24 hours before ovulation to 12 hours after ovulation.

Intercourse closer to ovulation the faster but less robust Y (boy) sperm. The cervical mucus present at ovulation is less acidic and “slippery” enough to help the Y (boy) sperm reach the egg more quickly.

Sexual Position

Shettles suggests that if you are trying to conceive a boy, deep penetration from your partner, will deposit the sperm closer to the cervix giving the more aggressive and quicker moving “boy” sperm a head start to fertilizating the egg first.

Sex and Orgasms

When trying to conceive a boy, Shettles suggests that orgasms during sex are a good thing as the body produces substances after orgasm that makes the vaginal environment more alkaline, which favors the “boy” sperm.

The contractions which accompany an orgasm help move the sperm up and into the cervix, giving the “boy” sperm an extra chance at being available when your egg is available for fertilization.

Considerations for the Men

Have you wear boxers. Wearing tight fitting underwear increases the heat levels around the testes and can, in turn, lower the sperm count. Wearing loose fitting underwear helps keep the testes cooler.

Have you drink a caffeinated beverage right before sex. This makes the Y-Sperm more active.