Protein rich meals & snacks - small but frequent, peppermint, lemon (smell & taste), honestly Dr Pepper helped with my first. If it gets too bad your doctor should be able to prescribe medicine. There is also something called hyperemesis gravidarum (HG) which is basically “morning sickness” to the absolute EXTREME. If you can’t keep anything down, it could be that. However if you are just feeling nauseous all the time unfortunately that is common. It does usually get better in the 2nd trimester