Quote:
Originally Posted by minim
It was fairly well mind-blowing to realize at the age of 39 that I'm only fertile for a few days each cycle. Add a few days' buffer zone on either side of that, and I still have a decent-sized window where I can have sex without fear of pregnancy. It's too bad I didn't know this when I was younger.
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threadjack:
Are you factoring the time sperm can survive into your calculations, in addition to the more general buffer zone?
From Mayo Clinic:
"The life span of sperm after they're ejaculated depends on the environmental conditions. Sperm ejaculated into a woman's vagina remain alive in the mucus of the cervix and are able to fertilize an egg for three to five days"
Sperm: How long do they live after ejaculation? - MayoClinic.com
/threadjack