Drinking liquid is very essential ....I had also alot of sugar drinks in start of my pregnancy due to UTI. I could not stand the taste of plain water. But as your said ginger I have no idea but still would recommend to use in limit. Lemon can be harsh if you have burning in urine. Good luck.
I drank lots of water but it literally made my stomach hurt. Ginger and all that stuff didn't work for me and I'm a holistic person that's usually what I would do. By desperation I tried sipping regular Pepsi, I never drank soda when I wasn't pregnant it made me sick usually, but it worked and helped my sickness a bit. I'm in my second trimester and its subsided ALOT. The morning sickness lasted the entire time with my last pregnancy.
I also have used mints peppermint has worked really good my stomach has been horrible. Bee sick entire pregnancy im 32 today and STILL sick... Hope ur better soon :)