Nausea/vomiting question!

So I'm 7 weeks pregnant now and nausea started pretty much as soon as I started my 6th week. Before that I felt totally normal, but now, nausea has taken over. I eat every few hours and chew on ice and that seems to help. So far I have not thrown up. Is it safe to say I probably won't throw up and this is the extent of my sickness? Or is going to get a lot worse and I need to be prepared. Kinda nervous about it all 😔 any insights?