Nausea tips?

Suzanna
I'm not sure how far along I am, last period may 31st-July 4th.
My dr didn't want to do an ultrasound until Aug 3rd; and she also didn't want to give me morning sickness medicine until after a month, in case my symptoms went away.
Three weeks later and I'm STILL suffering. I can't eat dry crackers with PB like everyone keeps suggesting.
Bread either 
Ew or cereal either; it comes right back up.
I work at a Subway 😷 and the smells are killing me. I work nearly forty hours a week, standing the entire time.
I need relief already. 😲