Horrible Nausea

Shelby • Happily married since 6/27/14, Connor Dean born 9/5/15
Hey all, 
I'll be 7 weeks tomorrow and the last 4 days I've have pretty rough nausea. I've been fortunate enough to have the last 4 days of work off and I start back tomorrow. I have constant nausea that ranges from mild to severe, sometimes lasting all day. 
I started with Unisom sleep tabs and b6 but that didn't help. My doctor put me on Zofran yesterday and it's starting to help. 
The only time I've vomited was 2 nights ago and it was triggered by onions. 
This also is my first pregnancy. Any suggestions or tips for relief?