When immigrants women come to live in Taiwan at the first time, some of them are not accustomed to new living environment; thus, there are certain symptoms that they may have. For example, nausea and vomiting, missed period, diarrhea and other symptoms of unaccommodating. Stress, illness, changes in diet and other situations can cause some symptoms as well as pregnancy. The only way to confirm pregnancy is to take a pregnancy test and then confirmed by your doctor.