Am I in the 2nd trimester

Ma

I'm 12+6 today and my symptoms are gone. Only thing left is excessive bloat in the afternoon/evening. That's so uncomfortable. However, I don't want to worry that I don't feel the nausea, gagging, etc. anymore. I want to feel hopeful that this just means I'm getting into 2nd trimester and that's typically when you feel better, right?

But doesn't it start until 14 weeks?