Conception Calculator?

[kimanand]

Hi All,

We would like to have a baby anytime after Feb 09 so we're trying to work backwards and figure out what date we would need to fall pregnant (assuming we'd fall pregnant straight away!)? Is there a calculator of some sort anywhere? i've tried googling but i'm obviously not using the right key words!

Any directions would be much appreciated!

[Sharai]

I know this is american but it gives due date and estimated O date and fertile window
Try here (http://www.americanpregnancy.org/duringpregnancy/pregcalc.html)
Hope this is ok to post