Pregnancy by the numbers
Illustration: Nica Patricio
A baby girl in utero has about six million eggs in her ovaries, but she only has about two million when she?s born. Those eggs aren?t mature, and many deteriorate as she grows. By the time a woman reaches puberty, she has about 300,000 eggs left, and only about 400 of those eggs will actually go through ovulation.
Men, on the other hand, are sperm machines. The average man creates 1,500 sperm cells per second. The amount of sperm in a typical ejaculation is about half a teaspoon?that may seem small, but that semen contains anywhere from 40 million to 300 million sperm. Remember, it only takes one sperm and one egg to make a baby!
Your chances of getting pregnant are 25 to 30 percent per menstrual cycle.
According to Health Canada, a 30-year-old woman has a 90 percent chance of getting pregnant. That chance drops to 77 percent by age 35 and 55 percent when she is 40 or older. Thirty-one percent of first-time moms are between the ages of 30 and 34.
Pregnancy is 40 weeks, or 280 days. Your due date is calculated by counting 40 weeks after the first day of your last period, but only about five percent of babies are born on their actual due dates. Most babies are born between 37 weeks and 41 weeks. One in four babies is born after 41 weeks?that?s when you need to eat spicy food and indulge in some nipple stimulation.
An ultrasound takes about 30 minutes, and you can find out your baby?s sex during your mid-pregnancy ultrasound?this usually ...
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