Ok, I just found this interesting thread in trying to learn the meaning of the words. That last comment, "They mean the mother might soon die" isn't true of amniotic fluid coming out. Water "breaking" is a normal part of the birth process. So...I like the theory that it could be a hump backed boy but it makes more sense to me that it's someone who sells Tortoise meat or shells.

The other idea I wanted to suggest is that "Make me mamma no know" could be about the original sex that led to the birth...and maybe indeed it isn't multiple births, but multiple occasions of forced sex...maybe just consensual sex, even...