How would pregnancy affect a Force sensitive woman? I remember seeing concept art of Padmé sleepwalking and being physically weak while carrying Luke and Leia, but she is, at least according to Lucas, not Force sensitive. Also, would a Jedi or a Sith be able to tell if the child they’re/she’s carrying is Force sensitive?

I’ll answer your second question first, because it’s simpler: yes, a Force-sensitive can tell if their unborn child is also Force-sensitive. They can reach out and make mental contact, which can be used to calm the child, as Leia would do with her twins.

As for your first question, I believe the answer would vary, but pregnancy should generally have little affect on a Force-sensitive. We only have a couple examples to work from. Leia, if my memory serves, encountered no adverse effects beyond being able to emotionally communicate with the child, implying that under normal circumstances a Force-sensitive’s pregnancy shouldn’t be much different from a non-Force-sensitive’s. Mara Jade’s pregnancy should probably be discounted because of her illness, and I cannot think of any other Force-sensitives who became pregnant and were known to experience unusual side effects. (If anyone knows of an example, feel free to add on).

Hope that helps!

~ Jacen