…wait I thought the main character was bi?
Fukc.
Edit: just went to the first game to double check since I faintly recalled seeing something about it there
“The main focus is on Yuri/Lesbian content. But there are choices that can lead to straight sex. But it's avoidable, so, you can have a full experience without any straight sex, if you want.”
So she IS bi but pregnancy is probably not happening.