3) Pregnancy is in the plans, yes, but it's not simple to introduce, as tattoos and other body modifications, it brings one big problem, multiplying the render time as since I always wan to keep the choice to the player,, it would force me to do multiple renders, with normal, pregnancy, tattoo, pregnancy + tattoo, etc... the more I had the more there is. And all this options have first to be brought up organically (well, at least be justified) and thought through. So, most likely later in game, be patient.
For the other sex scenes with other characters, well, again patience, things take time, there's a lot of characters and plotlines, I just can't work faster.