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並前往https://www.newscientist.com/article/mg22730324-100-when-should-you-get-pregnant-computer-knows-age-to-start-trying/

When should you get pregnant? Computer knows age to start ...

Wait until 35 and the odds are 50:50 (see “When to get started”). ... For example, the average age at which a woman has her first child is ...

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