Is the Chinese pregnancy calendar safe to use? Yes, this method is safe as it involves no medical or invasive procedures. There is also no potential risk of harm to the mother or the baby. How is the ...

The Chinese gender prediction charts utilize the lunar calendar and a special formula ... baby’s sex as soon as possible during pregnancy, the method of prediction will take the form of prenatal ...

A growing share of women who seek abortions were using period-tracking apps or other fertility awareness methods when they got pregnant ... like the rhythm or calendar method.

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