Yes, some women never really have much for symptoms while others have every symptom there is. You are what some people would call lucky. And don't get too excited yet - a lot of women don't start getting them until around 6 weeks. Good luck to you.
I think you're asking if it is normal... If so, yes it is normal. Many people don't have morning sickness or other symptoms the entire pregnancy. Remember, 5 weeks is VERY early in the pregnancy so try not to worry too much.
I'm currently 4wks 6dys and I look forward to no symptoms. Although, I think my left nipple is sore.. :) Seriously though, one can be pregnant without the symptoms and it wouldn't be a bad thing.. I hope you continue to have none.. nothing worse than the gag reflex popping up at the store over samples.
definitely normal at 5 weeks i had hardly any symptoms. :)
i didnt start getting sympotms till i was about 7 or 8 weeks...