Can a pregnancy test be delayed for two days?

Pregnancy tests are not always accurate.

In theory, HCG levels rise gradually after pregnancy and can be detected by pregnancy tests after a certain period. However, HCG levels may not rise enough to be accurately detected when menstruation is delayed for two days, and false negative results may occur. Different pregnancy tests vary in sensitivity. For example, pregnancy tests or pregnancy test strips may be relatively insensitive and prone to errors at such an early time. In

addition, menstrual delay is not necessarily caused by pregnancy. Women's menstrual cycle is susceptible to a variety of factors, such as recent mental stress, irregular work and rest, environmental changes, endocrine disorders, certain diseases, etc., may cause menstrual delay, can not rely solely on menstrual delay to determine pregnancy

.