Does your morning sickness ween before the end of the first trimester?

Toni • Our Rainbow is due 1-9-16 🌈
I'm 9W2D, and I've had HORRIBLE morning sickness since week 6... But yesterday and today it's been weening a little. Yesterday I only threw up three times, and today (knock on wood) I haven't at all! It's worrying me that it's ending before the first trimester. I AM thrilled to feel better, but I am worried this could mean my hormone levels are falling or something. Has anyone else had any experience with this?