Is it accurate to use pregnancy paper at night?

Pregnancy test paper at night is generally accurate.

The principle of pregnancy test paper is to detect the level of human chorionic gonadotropin (HCG) in urine. HCG gradually increases after pregnancy, whether at night or at other times, urine may theoretically contain enough HCG to be detected. However, urine may be diluted at night compared to daytime. If pregnancy is short and HCG levels are not very high, pregnancy test paper may be difficult to detect accurately after diluted urine at night. In this case, morning urine may be more accurate because HCG levels are relatively high after overnight concentration.

However, if pregnancy has been going on for some time and HCG levels are high and stable, then using pregnancy test paper at night can usually obtain more reliable results.

In order to improve accuracy, whether it is night or other time, it is necessary to use pregnancy test paper correctly and strictly follow the instructions to ensure the standardization of the test process.