Hi C.,
First of all, congratulations! I can relate because during my first pregnancy, I had hyperemesis and spent most of my time(the first 5 months in the ER getting hydrated). Currently, I'm pregnant with my second child and 12 weeks along. At 7 weeks, the vomiting became severe just like you, I couldn't eat or drink anything. When I called the doctor she was going to prescribe just the phenergan. I was told her very strongly on the phone that it didn't work in my first pregnancy and she prescribed zofran along with the phenergan. So far, this has helped tremendously with the nausea and vomiting. I have still had to make two trips to the ER for hydration, but haven't lost any weight as in the first pregnancy. Mornings are still tough, but most of the day I have energy to play with my son.
Also, I never tried acupuncture, but have heard good things about it and was going to give it a whirl with this pregnancy. Another thing I tried that helped a little was a vitamin B-6 supplement (once I was on the Zofran). You may want to ask your physician about this. Eating little bits at a time helps also (about every two hours).
Good luck and I hope this information helps you! I can sympathize with how miserable this is and will help you in any way I can. Feel free to write back.