Morning sickness and test results.

Mariah
If I woke up with morning sickness, would my test results be accurate that day or is it
Possible they still may need some time? Also I'm curious how you know weather it is morning sickness. I woke up one day sick to my stomach and had dihheria and it lasted for 2 hours and I threw up once. Was this morning sickness of was of some stomach bug or something?