So sick😭

This is my second pregnancy my son is 5 months (I know I’m crazy) I’m currently 7 weeks but I get an ultrasound the 10th. I’m so nervous this time about about everything going wrong ex: ectopic, miscarriage etc. it’s giving me so much anxiety. On top of that I’m so sick and nauseous, I never felt this sick with my son. Nothing sounds good, I can’t eat much and I really just want to sleep and lay in bed. Thankfully I have an amazing fiancé and he takes care of our baby when I just can’t. Any advice on being so sick and/or calming my nerves.