If you are not having any morning sickness, or better know among moms as "all day sickness", be grateful!
It is very common for pregnancy symptoms to vary from woman to woman. We each react to the hormone changes a little differently and that is normal.
Remember when you got your period, maybe you had PMS or cramping but your friend didn't? The same it true for pregnancy, some of us with experience morning sickness, sore breasts, bowel problems, the list goes on an on. Some of us will be luck and experience none of this annoying symptoms.
It can be scary to have no symptoms because you may question if you are truly pregnant or not but don't worry.