I mean first off, you’re never wrong for feeling any emotion, the only “wrong” thing could be if you use it against someone. I think there’s definitely valid reason to feel this way, you cared about her, it sounds like it still affects you, and she’s showing the opposite. however, I am assuming the pregnancy was an accident with the timeline, so it’d prob be good to think of it that way and realize that it wasn’t directed at you, and she could be facing stress about it too.