I ALWAYS get round ligament pain
--that is actually one of my first signs of pregnancy
--even before morning sickness! I move or turn in bed a certain way and about die! It hurts so much. My Dr. said it shouldn't happen that soon--but I am telling you it does!!! I've had several children, so maybe that has something to do with it.
And as far as morning sickness coming and going---that is very normal, especially in the early weeks.