The accuracy of using a pregnancy test in the afternoon is not high. If the urine is diluted after drinking a lot of water or drinks, the test result may not be accurate. The pregnancy test mainly detects HCG in urine, which is a preliminary screening method to determine whether you are pregnant or not, and there may be false negatives and false positives. If you are just pregnant and do not have much HCG in your body, the results may be inaccurate if you take the test in the afternoon. The results of the pregnancy test stick need to be measured several times. For accurate results, it is recommended to go to the hospital for blood HCG laboratory tests and ultrasound imaging. The pregnancy test often requires a clean container to collect the morning urine, which is relatively more accurate. The marked end is then inserted into the container and left for 3 minutes. If a red bar does not appear, the test strip is probably not working. If one bar appears, the test is negative, indicating that you are not pregnant. If two bars appear, it is positive, indicating pregnancy. If you experience delayed periods for more than 2 weeks after intercourse, nausea, or aversion to oil, it is recommended that you go to the hospital to test for pregnancy. If the test result is pregnant then the exact date of pregnancy can be further speculated based on the ultrasound result and the time of the end of the last menstrual period, which will help the pregnant woman and her doctor to have a clear knowledge of the next step and can make the next arrangements, such as maternity checkups, and daily life should pay attention to keeping a happy mood and a balanced diet.