Well, my fiancée and I also took prenatal classes. Just for the simple reason that we did not know enough.
And that is ok, because therefore those classes exist. And they provided us with plenty of useful information to calm us down.

How does she feel now? Heavy and tired... our child should have been born 8 days ago, but he takes his time.
Will my fiancée get back in "shape"? (or how do you say that)
We have a balanced diet and up to this day we still to our forest walks. It is a matter if listening to your own body... I would say, take everything step by step and you will find your balance back.

So ladies, stay strong! You have a husband out there to help you! (and who stays awake as well if you have trouble sleeping ;))