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Boy or girl?

Boy or girl? It's the question everyone wants to know the answer to. We've looked at the science of what influences a baby’s sex. We've rounded up the most useful and used them to create our gender predictor.

While this tool is based on the available science, many of the studies are small scale and show only slight changes in the likelihood of having a boy or girl. Some studies carry more weight than others, so your result may say one sex even though more of your answers point to the other. Finally, whatever result you get, treat it with caution. Don’t start painting the nursery blue or pink just yet!

Are you over 35?

Yes

No

Were you living with the father of your baby when you conceived?

Yes

No

If you are married, how long had you been married when you conceived?

Less than a year

More than a year

I'm not married

Is the father of your baby over 40?

Yes

No

How many children do you already have?

None

One

Two or more

Were you eating a high or low calorie diet when you became pregnant?

High

Medium

Low

Does the father of your baby work in any of these occupations: airline pilot, deep sea diver, submariner, timber mill worker, flour mill worker?

Yes

No

Were you under stress before you became pregnant?

Yes

No

Which season did you conceive in?

Spring

Summer

Fall

Winter

Did you conceive after having your ovulation induced hormonally?

Yes

No

In your pregnancy, have you suffered from severe morning sickness (hyperemesis gravidarum)?

No

Yes, I had no treatment or was treated at home

Yes, I was admitted to hospital for treatment

Were you born in a tropical climate and living in a tropical climate when you conceived? (Only answer yes if the answer is yes to both parts.)

Yes

No

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