Nausea

At 6 weeks I am having occasional bouts of nausea. I can kick it with some spearmint gum and lots of water sipped slowly.

However, with my last pregnancy (did not carry to term) I had debilitating nausea all day/night and vomited many times a day.

I really don't want to go through that again. My question is has anyone started with a little nausea that became much worse? How good are the chances that this will be it for me ... This I can handle.