I dont think they can. Doesnt Edo blood disappear?
Your swimmers will disappear too I think.
An edo is not a real body, so I dont think an Edo can impregnate or give birth.
=D haha xD.
Only attempt to answer the question :
Itachi can blend because underneath his itachi look there is an alive ninja which was used for edo tensei and he has blood and organs but about them being able to make babies depends on if the live sacrifice shinobi dies after edo tensei has been cast . If they don't die then 100% they have a baby with anyone even another edo tensei.
But that's thinking to much
The body used in the sacrafice dies I think. It is not a sacrafice for nothing. You can see this from situations where Edo's were released due to emotions (Sasori for example). A dead body is showing in the dust.
Anyway possible or not, we will probably never know

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