Women can use a pregnancy test as early as about 14 days after intercourse, or about 1 week after menstruation, with the latter being more accurate.
A pregnancy test determines whether a woman is pregnant by detecting the level of human chorionic gonadotropin (HCG) in morning urine. Due to the changes in hormone levels after pregnancy, the level of HCG in a woman’s urine rises around 14 days after the fertilized egg is formed and can be detected by a pregnancy test.
However, some women do not have a significant increase in HCG in their urine, and can also be tested around 1 week after menopause to be more accurate.
If a woman is found to be pregnant by using a pregnancy test, it is recommended that she consult a doctor in time and complete relevant tests such as blood HCG and ultrasound under the doctor’s guidance in order to further clarify whether she is pregnant or not.