Wasn't the whole point of the Elogium that there was only one specific time in an Ocampan's life when she could get pregnant?
It may have been "the point" of the episode, but it was not stated in the episode.
Which is all good and well, because species where the female in a setup of sexual reproduction only has one litter of less than three kids will quickly go extinct.
I don't know if the writers realized it, but I'm thankful they stopped short of stating that the Ocampa can only have one litter. What they did say was quite a bit more ambiguous. Here's all the relevant dialogue:
Kes: "The elogium occurs only once. If I am ever going to have a child, it has to be now!"
And, moments later,
Neelix: "Are you saying that unless you conceive now, you'll never be able to?"
Kes: "Yes. And I need you to help me decide because I would want you to mate with me."
After that, there is no mention that only one child would be produced, or that there would never be further pregnancies after the first one.
So basically we're free to interpret this as establishing that an Ocampa female has to be impregnated at the onset of her elogium, or very soon thereafter, or she will cease to be fertile. If the initial impregnation does take place, she's then free to have as many pregnancies as she likes - but if it doesn't, a biological time window closes and her reproductive system goes to early retirement.
Makes sense, in a way: if there's not going to be offspring within a certain period, there's not likely to be offspring later on, either, since the Ocampa only have nine years to play with. And if there's not going to be offspring, then the reproductive system is just needless ballast and the body should get rid of it ASAP; the remaining seven years could then be spent helping the kids of other Ocampa couples survive and carry on the genes.
As for having the pregnancy externally on one's backside, rather than internally in one's tummy, I'm sure many women here would hail such a development. Not only does it make great structural sense, it's also something that sounds almost like one of the myriad varieties of birth-giving methods here on Earth, but is subtly unlike any of them. Thus, pretty good science fiction...
Timo Saloniemi