You'll be able to impregnate several of the women, but there won't be any big timeskip so it won't show much.
As in the sharing question, there are some girls that personality wise I feel I have to give the player the option to go wild as in group sex scenes or something of the sort, and yes, including other guys, but I like making girl on girl content so sharing with another girl it's more likely to happen.
So it depends on the character, like Sally for example is very sex driven, so if you are at a party with her, you can feel like taking her to the bathroom. But other player might feel like starting an orgy because they feels that's what Sally would do and I want to give the player that option.
Most girls won't have those options because most girls are resonably normal but some crazy ones or some of the villains could have those options.
That's why I'm making every sex scene a choice for the player to make because that's what I like to have on a game. That's the game I want to make.
I want to have that freedom so I prefer to tell the player that it could happen, because it's the honest thing to do even if it ends up not happening because I never find a good spot for one of theses scenes.
I hope I was clear enough, I don't think I'll adress this subject again.
If you still have some doubts maybe it's best for you to wait until the game progress a little bit.