Essential oils/aromatherapy for pregnancy

I’m about 10 weeks pregnant and although I have no nausea I have crazy hunger every little while and also sometimes my body feels so...weird and my stomach just doesn’t feel right and I feel suffocated in my house and hate the smell of my house and I get a bit depressed and start crying for no reason (probably bc I’m feeling so weird and uncomfortable tho) and I thought maybe essential oils and a diffuser would help calm me and my emotions and my senses. Has anyone used them and know what would be a good and safe oil for what im going through right now?

Thanks!