HI, thanks for using healthcare magic
Pregnancy tests detect the
HCG hormone. This is normally detectable by day 11 to 14 after conception. If this time has passed then the tests are truly negative.
Other causes of continuous
nausea would be: (1) reflux- in some persons the typical burning of the chest may not be present.
Some present with the nausea , spitting due to excess saliva can also occur in this condition
Since it is so common, you may want to try the reflux diet and medication. It can take 5 days, in some cases, to respond to medication.
(2)infection of the
liver, kidneys
(3)
gallbladder disease
(4)chronic (long term) kidney disease
(5)side effect of medication
(6)alcohol use
(7)abnormal levels of calcium
If it is not due to reflux, then bloods may be needed to see if it is related to one of these.
I hope this helps