This, from a posting by Sheldon Brown about ten years ago.... (highlights mine)
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Rafael Aviles wrote:
>
> Riding while pregnant is not too difficult. Getting pregnant while riding is,
of course, a bit trickier... My buddy, John Allen (
http://www.bikexprt.com/users/jsallen/) used to
theorize that this might be possible on a recumbent tandem...and that one might
be able to finance it by getting funding for
"recumbent dna research."