I think I'm going to go with Sprog. Reasoning ... I like the sound of it AND wikipedia says it can mean the following:
a slang term for a child - well, yeah, but that's kinda boring Sprog (software), a graphical tool to build Perl programs by plugging parts together - AWESOME I know Perl! And plugging parts? That's totally a sperm & egg reference thingy, yeah a plant that takes the place of grass on the fictional planet Snaiad. Even better! nickname of Mark Williams (snooker player) Who? Aniseed jelly button as found in assorted licorice Whaaa?
OMG if Sprog doesn't scream the name for your potential feti (I'm going with feti over fetuses)!
Though I don't know who Mark W. is either and the licorice thing is just bizzar