Scaredd !

Hello girls this is my first pregnancy and i am about 6 or 7 weeks i am going in monday for an ultrasound. I am scared because i have insane nausea and no energy and vomiting can barely eat and dont drink water or anything . Im scared im harming my baby or something. I was in the e.r about a week ago and they put me 2 iv because i was dehydrated . Im fustrated with how sick i feel and feel like i have no life but be in bed. Any remedies or help?  😕😔 i dont want to harm my baby by not drinking or barely eating but its that nothing goes down im too nauseous and sick !