Congrats on your pregnancy!
I tried all sorts of remedies: lemon sweets, ginger snaps / ale, sour plum, plain crackers. All of these didn’t work for me. I found some relief drinking small sips of cold isotonic drink (non gassy H2O).
Every woman will have different solution for nausea, you need to find one that suits you. It will take some luck to eventually find one that works. Hang in there!