Sure, bringing bacterias with you is a surely a thing, though you would just leave behind a large share of diseases.
A lot of (most?) animal diseases aren't communicable to humans and while humans at least have a common ancestor, this won't be the case on another planet with an existing biosphere. So they might not even have a DNA or RNA but some other fancy way of storing genetic information — if even necessary.
Though on the other hand, you might encounter some kind of alien cold which would skin humans alive.
All true, though one thing about bacteria and (most especially) viruses -- they are driven very, very hard to survive and persist, and they mutate constantly as a result (and can wait, dormant, for long long times. (See also why our flu shots don't work for ten years, which I know you know but I babble.) Which may be getting off track, I realize, but it could be another factor in the long term of the colony -- generation seven or eight hits a certain critical mass and a certain herd immunity doesn't get passed along, and suddenly
boom, everyone's sick out of nowhere...
Let's say a woman gives gets pregnant 13 times during her life. Assuming one-third of miscarriages and another third dying because of infant mortality, there are still about 6 children left. For humans, that would be tripling, but for a futanari, it would be sextupling. (That might only apply to a young species of futanari before natural selection decreased high fertility)
That said, just the knowledge of hygiene would help to reduce both, miscarriages and infant mortality.
True, though miscarriages can beget further miscarriages, depending on the reason for them. Honestly, with our futanari as a single person, my biggest concern would be
them surviving a bad pregnancy complication. Eclampsia (in developed nations) is generally more of a risk for the fetus than the mother, for example, because we know how to look for it and what to do when it comes up, but for someone who's literally all alone on another planet, suddenly being struck blind as a pregnancy complication would likely be a death sentence even before other eclampsia complications came up. Even just having too large a placenta develop with the fetus can lead to bad trouble, when you're the only available womb (or life).
And for that matter... you'd want to have a number of children in short order to develop even an inbred gene pool... but when you're the literal single caregiver for babies, there's a lot of potential danger to them just because of something happening that you can't address quickly enough. And, until at least some of your children are self-sufficient, when you die, they die.
...we're literally talking about self-impregnation of a futanari on another planet as a colony starter, and now I have
Ave Maria stuck in my head. Well played, gene.sys. Well played.
Probably works best in diary style with weeks, months or even years between the entries.
Agreed. And brings us back to
Martian comparisons, which is no bad thing.