Why can ovulation test paper detect early pregnancy

Ovulation test strips cannot be used to detect early pregnancy. Because ovulation test strips mainly detect luteinizing hormone in urine, generally 24-48 hours before ovulation, the luteinizing hormone in the body will reach its peak, and through ovulation test strips, it will detect whether it is positive or negative, and clinically we will know whether there is ovulation or not. Testing for early pregnancy is using test strips to detect the HCG content in urine, so the purpose of the two tests is different, and the test strips used are also different, and you cannot detect whether you are pregnant with ovulation test strips.