Generally, if your mother was OK, you will possibly be fine. I mean possibly
. I don't think there is any model to predict morning sickness pattern, but
it is said genetic factors could play an important role here.
As to myself, every woman in my family experienced tough pregnancy. I had to
stay home (or hospital) starting the 6th week till the delivery. But I didn
't feel anything up to the 5th week. So don't worry, just pray. Good luck!