BSIP, RAGUET H. / SCIENCE PHOTO LIBRARY BSIP, RAGUET H. / SCIENCE PHOTO LIBRARY
Biological clock. Woman holding a baby's sock, while she day-dreams about having children. The probability of becoming pregnant during a menstrual cycle falls from 50% at the age of 19 to less than 30% for women in their late 30s. It is said that as women reach their 30s, they can hear their biological clocks ticking away, indicating how little time they have left to have children. Women can become obsessed about having children and single women may resort to artificial insemination to fulfil their desires.
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