DragonMatt JoeTheMC84 S1nsational xapican Tiur HentaiKami
It's easier to respond this way than through quotes when I've just woken up.
RiamMar mod does a great job showing the variables that affect each of the girls. Also, it's non-intrusive (doesn't change the saves) and it's universal, so it works on the day of the public release. I am collaborating with him so that it will be updated when the game reaches you.
Summarizing the possible pregnant ladies: Eileen, Norah, Alexia, Megan, and Emma. All of them will have more opportunities to get the baby-making oven going (Norah has already had it). One more lady will join the club in the next update.
The conversation with Eileen will not be repeated at the same levels of emotionality, but her situation at home is important to the story, so it is information that the player has to receive.
About the harem van, I have a better option. A couple of these: