Non-stop nausea

Hey everyone! I am 6 weeks 4 days and barely able to get off the couch. I am always nauseous, I have tried b-6, ginger pills, unisom, promethazine (prescribed by my obgyn), saltines, and sprite. My hubs just got me lemon and ginger snaps. I can't eat anything without feeling even more sick. So far I have missed 6 days of work, and I can't miss anymore. Does anyone have any advice? I am desperate now!