In clinical practice, it is recommended to pay attention to the following matters: 1. If pregnancy is confirmed, it is best to have the blood drawn at 31-32 days after menopause. 2. If you want to identify some symptoms caused by ectopic pregnancy, you can have the blood drawn every other day. 3. The results will be available at around 3:30 pm on the same day so that we can understand the condition and give timely treatment. It is also recommended that when the blood is drawn, when the blood is quickly pressed to the local area with a cotton swab for about 5 minutes after the blood is drawn before it is released to avoid local bleeding.