Morning sickness?

Hi everyone! Can anyone tell me if it is normal not to have morning sickness around 6 weeks and 5 days? Sometimes I get a little nauseous. But nothing like some of these woman have been talking about. Makes me worried there is something wrong with my babe. I see the doctor on Monday. Only symptoms are cramping.. not anything bad, my nipples aren't sore.. more sensitive than anything and headaches. But could be from not having caffeine. Just worried that lack of symptoms mean something