"Morning" sickness or food poisoning?

Jenna
I am just 6wks pregnant and haven't had any sickness yet. 
​The night before last, we went out for supper and I felt nauseous through the night but never got out of bed. 
​Lastnight I, I had the leftovers, and was sick right before bed at 9:30 and then every 2 hours through the night. 
​Has anyone else experienced something similar that was just pregnancy sickness?