When you have a cold, due to viral infection, it may cause irritation of the gastrointestinal tract function, and if you take oral medication, you may also have the urge to vomit. If there is a fever, the desire to vomit does not mean that you are pregnant. If you are pregnant, you can buy an early pregnancy test and the result will be accurate as long as it is more than 12 days after intercourse. If the test is not 12 days old, but more than 8 or 9 days old, you can go to the hospital to have a blood test for HCG, which is also very accurate. If you are sure that you are not pregnant, try to go to the respiratory medicine department to register for diagnosis, and depending on the situation, you can be prescribed medication for cold and flu and just treat it. When you are pregnant, you will also have a reduced resistance, but it is more likely to cause a cold, this time also need to pay great attention, must check clearly whether you are pregnant, before you can take oral medication, so that the drug does not have a certain impact on the fetus.