This method was born after results of a 1984 New Zealand study on the timing of sex relative to the ovulation cycle were published in a medical journal. The study tracked the number of boys versus girls that were born in the days preceding and following ovulation. An Australian woman, named Kynzi, who was the mother of 6, count em 6 boys, came up with this method after all others failed her, including Shettles. After reading the study she concluded that more girls were conceived after ovulation took place so she advised that intercourse only happen 12 hours after you have ovulated, hence O+ 12.
After timing intercourse to occur 12 hours after her ovulation cycle began, Kynzi finally conceived a girl. To correctly administer this method the following must be done:
- The male must refrain from ejaculation for up to 7 days before intercourse to increase the ratio of female sperm. (NO sexy time with his wife or by himself)
- Keep track of ovulation – when you get confirmation that ovulation is about to happen look for the changes to indicate that you are ovulating such as a rise in temperature (if you are charting), or any ovulation pains
- Have intercourse within 8 to 20 hours after you believe you ovulated.
Slightly Confused in Boyland,
~Nacia
3 COMMENTS:
Interesting -- that sounds like a lot of work and preparation, but it might just be worth it. (Poor hubby, though, with no relief for seven days...)
That said, the probability of having a girl after having six boys is still 50/50. Whether you've had boys or girls beforehand doesn't affect the probability of conceiving a girl during any particular pregnancy. It is only the probability of having given birth to seven boys that is less than 1%. Does that make sense?
Yeah I don't think I'm going to try this method. It seems too complicated. I should have clarified the reason I won't try the O+12 method. I don't believe it is clear whether or not she had a girl due to her method or because the probability of having all 7 children be of the same gender is a little over 1% according to the National Longitudinal Study of Youth conducted by the US Dept. of Labor. The statistics are as followed:
Family Size Same-Gender Mixed-Gender
2 Children 50% 50%
3 Children 25% 75%
4 Children 12.5% 87.5%
5 Children 6% 94%
6 Children 3% 97%
7 Children 1.6% 98.4%
As you can see the probability of all children being the same gender decreases as the number of children increase. Hope this helps and thanks for commenting.
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