If a woman has a regular menstrual cycle, there is a high possibility of pregnancy if the menopause is delayed for more than 10 days. It is recommended that you can buy a pregnancy test after more than 1 week of menopause. It is very easy to use a pregnancy test, first check whether the package is intact, if it is damp the test will affect the detection effect. If the seal is intact, you can take it out and use it. However, you should not leave it for too long, because if it is left outside and gets damp, it will still affect the effect of using it. Morning urine is used for pregnancy tests because it is concentrated and has a higher chance of detection. The pregnancy test is usually equipped with a small urine cup, take half a cup of morning urine, place it smoothly and then put the pregnancy test in the cup, not over the test strip label, when the urine rises, take out the test strip and put it flat after 1 minute, observe it for 3-5 minutes and you can read the result. If there is one red bar, it is negative and you are not pregnant; if there are two red bars, one dark and one light, you may be pregnant and it is recommended to retest after 2 days; if there are two dark red bars, you are pregnant.