In response to my article about Rielle Hunter's chances of having a baby at 43 , a reader asks how researchers determine a woman’s chances of becoming pregnant each month, especially when they don’t know when or how frequently she is having intercourse. Since a woman is only fertile about three days a month, the stat assumes she’s had sex during this window. About two weeks into a woman’s menstrual cycle, her ovaries release an egg into one of her fallopian tubes during the process of ovulation. The egg must be fertilized within 24 hours to result in a pregnancy. Here’s how the reproductive ballet becomes more complicated: Sperm can live in a woman’s reproductive tract (in the cervical mucus, specifically) for at least two days and wait for the egg to be released. Dr. Richard Paulson, a fertility specialist at the University of Southern California Medical School, advises his patients trying to conceive naturally to have sex on the day of ovulation or the two days prior.
TODAY IN SLATE
Meet the New Bosses
How the Republicans would run the Senate.
The Government Is Giving Millions of Dollars in Electric-Car Subsidies to the Wrong Drivers
Scotland Is Just the Beginning. Expect More Political Earthquakes in Europe.
Cheez-Its. Ritz. Triscuits.
Why all cracker names sound alike.
Friends Was the Last Purely Pleasurable Sitcom
This Whimsical Driverless Car Imagines Transportation in 2059
- Protesters Take to the Streets to Sound Alarm on Climate Change in New York, Across the World
- Knife-Carrying White House Jumper is Vet who Feared “Atmosphere Was Collapsing”
- North Korea: American Sentenced to Hard Labor Wanted to Become “Second Snowden”
- Almost One in Four Americans Support Idea of Splitting From the Union
Did America Get Fat by Drinking Diet Soda?
A high-profile study points the finger at artificial sweeteners.