Hobbitwoman, I'm not sure what it's about either, but it contains the line "... make me go in a room, ..., make me have-a me labor... ."
I sort of got the feeling --from that and some other lines (e.g., "first you give me one, then you give me two, then you give me three and I holler 'Lordy, have mercy!'") that it was about forced prosititution, but the meaning of that song is far from being explicitly spelled out. [If it's not prostitution, maybe she's having triplets!]

Maybe someone else knows the story behind the song.

Genie