The earliest signs of pregnancy often vary from person to person, but here are some common ways to help you know you\’re pregnant at the earliest: Watch for Body Changes During early pregnancy, a woman\’s body may experience some changes. These changes include: breast swelling and pain, deepening of nipple color, increase in basal body temperature, frequent urination, nausea and vomiting, etc. These symptoms may appear gradually over the weeks of pregnancy, but be aware that they may not occur in every pregnant woman. Taking a Pregnancy Test A pregnancy test is one of the first ways to know you are pregnant. Hormone changes can be detected in a woman\’s urine and blood within days to weeks of pregnancy. These changes include: human chorionic gonadotropin (hCG) and progesterone. Pregnancy can be detected by using a pregnancy test stick or by going to the hospital for a blood test. 40-week pregnancy care guide electronic version mobi+epub+azw3+pdf Observing menstrual changes For women with normal menstrual cycles, the cessation of menstruation is the first signal of pregnancy. If a woman normally has a regular menstrual cycle but suddenly experiences delayed or light periods, this may be a sign of pregnancy. However, menstrual changes do not necessarily mean pregnancy and can be due to other reasons. Seek medical advice If you suspect you may be pregnant, or if you experience any of the above symptoms, it is best to consult your doctor immediately. Your doctor can give you more accurate advice based on your symptoms and test results. If you have any unusual symptoms, such as severe vomiting, bleeding, abdominal pain, etc., you should seek medical attention immediately. It should be noted that the above methods are just some common methods to help you know you are pregnant at the earliest and are not absolutely reliable. If you suspect you may be pregnant, it is best to consult your doctor promptly if you experience any unusual symptoms for more accurate diagnosis and advice. Do not take any action on your own before waiting for a doctor\’s diagnosis to avoid adverse effects on the fetus.