Vomiting after taking pre natals - help!

Hi everyone, so I'm 9weeks pregnant and have had terrible all day sickness/nausea since 6 weeks. I was initially taking pre natal tablets with the gel capsule but they started to make me vomit straight away, so then i bought the liquid which was fine for a few days but now i bring that up to! :( does anyone have any suggestions for me of other alternatives? I'm worried about the baby as all i can manage to keep down are raspberry yogurt or tomatoes with salt 😂 thats literally what I'm 'living on'.(anf even that comes back up!) HELP!!!!