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Do you have your heart set on getting pregnant with a girl? Or dreams of getting pregnant with a boy? Whatever you're hoping for, there are a number of ways — some scientific, others silly — that just might give Mother Nature a nudge and increase your chancess of conceiving a boy or a girl. Here's what you should know about gender selection techniques — including the high-tech, the low-tech and the no-tech options!
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Is it a boy or a girl? The father’s family might provide a clue

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How to tell if you're having a boy or a girl

The guessing game begins almost as soon as you get a positive result on a pregnancy test. Will it be a girl? Or a boy? But some moms have it much worse, suffering from severe nausea and vomiting called hyperemesis gravidarum , often leading to weight loss, malnutrition and dehydration.
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Gender and Sex: What Makes a Person a Boy or a Girl?

You can think about genes as an instruction code and hormones as chemical messages. In terms of genes, most people have 46 chromosomes. Chromosomes are large groups of genes. Two of the chromosomes, the X and the Y, are called sex chromosomes.
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A Newcastle University study involving thousands of families is helping prospective parents work out whether they are likely to have sons or daughters. The work by Corry Gellatly, a research scientist at the university, has shown that men inherit a tendency to have more sons or more daughters from their parents. This means that a man with many brothers is more likely to have sons, while a man with many sisters is more likely to have daughters.
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