No symptoms??? 5 weeks 4 days.

Hey ladies. This is my second pregnancy. With my first I was sick by now. This one I have no symptoms. My breasts are BARELY sore and if they are its not even all the time. Other than a stuffy nose and occasional headache (which could be normal) I'm not feeling anything. It actually really worries me!! Has/is anyone else had this experience and had a healthy pregnancy. I know every pregnancy is different but shouldn't I be feeing something? Thanks!