Call your ob and ask for zofran. I've had nausea since I was 2 weeks and I'm 17 weeks today. Its the only thing that helps at all for me. Mine is so bad that I've lost weight and I'm almost halfway through.
This is called hyperemesis gravidarum- pretty much extreme morning sickness . While its bot uncommon it does need to be brought up to your Dr as it CAN be unsafe for the growing baby. There are a few medications they can give to help reduce the nausea.
They put me on all different type of medications to stop me from throwing up but nothing worked,I got morning sickness probably all the way up til I was 4 1/2 months...the only thing that would slow it down was ginger