Has your blood pressure been checked  that's the only thing I could think of if everything is turning out ok. Good luck

All of the above is GREAT answers help her with chores if need be don't be upset if she doesn't feel like doing housework/chores or even if she doesn't feel like being intiment sometimes in the early pregnancy,you can have really bad morning sickness. So just go to the appointments with her,be affectionate with her.

Yes you can I knew a girl once that got her period for the entire 9 months and didn't know she was pregnant till her water broke. She was a big girl so you really couldn't tell that she was pregnant.