The term “period” is generally used to refer to a woman’s menstrual period. Pregnancy can be detected by a blood test if your period is delayed by one day, but test strips can give false-negative results.
Currently, pregnancy can be determined by drawing blood or testing urine for human chorionic gonadotropin (HCG), a protein hormone secreted by the placenta, which usually begins to secrete HCG when the fertilized egg begins to settle, that is, 7 to 10 days after ovulation, and then a blood test can be taken to determine if you are pregnant.
However, at this time, urine pregnancy test is also known as early pregnancy test paper, due to the placenta secretion of HCG is relatively small, and the test urine may be diluted, so there may be false-negative results.
Therefore, women with delayed menstruation are advised to go to the hospital as soon as possible to improve the blood HCG, ultrasound and other tests, under the guidance of professional doctors to determine whether pregnancy.