The next day after intercourse, there are nausea, regurgitation symptoms, this is not a result of pregnancy, pregnancy early pregnancy reaction is not so fast, at least 12 days after intercourse before slowly have symptoms. This symptom is due to gastrointestinal dysfunction or rest is not good to cause, if mild nausea, regurgitation can be observed, it is best not to eat greasy food, light diet, a small number of meals. If the nausea, regurgitation is more serious, it is best to go to the gastroenterology department, under the guidance of the doctor to do the relevant examination, after a clear diagnosis, under the guidance of the doctor with medication. Most of them do not have a big problem and are not caused by symptoms of pregnancy, so don’t worry too much.