Welcome to Healthcare Magic forum.
If you have had unprotected sexual intercourse /planning a baby after your last menstrual period till date then the most probable cause for your nausea and stomach upset
can be signs of pregnancy
However similar symptoms can occur in gastritis
, gastrointestinal infections either viral or bacterial and hormonal
The best way to confirm is to wait for a week and get a urine pregnancy test done.If your symptoms worsen then please consult your doctor for an evaluation and confirmation of diagnosis.He may also precribe an antiemetic like domeperidone for nausea, antacid
, and probiotics for controlling loose motions.
Hope I have answered your query.