Science Questions

How many days in a month can a woman become pregnant?

Sun, 17th Jan 2010

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Setep, on Twitter asked:

How many days in a month can a woman become pregnant?


Well, the fertile window is around the time of ovulation, which is day 14.  So you're really looking at 2 or 3 days either side of that because sperm can persist or survive inside a woman for 2, maybe 3 days.  And so thatís why itís really important to use safe sex practices ahead of ovulation. Also, the time of ovulation can vary by a couple of days in some women, so itís really important to avoid, if you don't want to get pregnant, unsafe sex in that week in particular.


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When they spend time together I've heard that womens ovulation more or less synchronizes with each other, is that correct, and why? yor_on, Wed, 24th Feb 2010

Yep, from my experience it is true that womens menstrual cycles synchronise if they a significant amount of time together, i.e work, friends etc.
Why? I have no idea, possibly in terms of evolution is was useful to coincide ovulation as a male could impregnate several females at the same time. If women have their babies at the same time, they can share reciprocal childcare duties, meer cats and lions have a similar technique. Variola, Sat, 27th Feb 2010

Interesting :)

From a male perspective I will now study my female companions with a much more interested look, they all working together encouraging my, ah, procreational urges.

We're weird :) yor_on, Sun, 28th Feb 2010

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