One week of pregnancy is 35 days of menopause, the symptoms of each person are different, some people will have early pregnancy reaction, mainly manifested as nausea, vomiting, dizziness, fatigue, drowsiness, do not think of food, some people have excessive drooling, afraid of cold, are normal. But there are also people who do not have any feeling, that is, the same as normal people, is also normal. If you have a vaginal ultrasound, you can see the pregnancy sac in the uterine cavity. If you have an abdominal ultrasound, you have to wait until you are more than 40 days pregnant before you can see the pregnancy sac because the abdominal ultrasound is not as clear as the vaginal ultrasound. Some people experience early pregnancy reactions after 40 days of pregnancy, so the symptoms and severity of early pregnancy reactions are different for each person.