Pregnancy is usually undetectable on the day of implantation bleeding, and increased levels of HCG can usually be detected in the mother’s blood 1-2 days after implantation.
Bleeding on implantation is a small amount of vaginal bleeding due to slight damage to the uterine lining and is not present in all patients.
Fertilized egg implantation refers to the process of implantation of the embryo into the uterine lining about 6-7 days after fertilization. Elevated HCG levels can be detected in the mother’s blood 1-2 days after implantation of the fertilized egg, so it is not very meaningful to detect pregnancy on the day of the implantation bleeding, and you can choose to use the test paper to check the pregnancy 2 weeks after the coitus.
It is recommended that the patient go to the hospital 1-2 days after the fertilization of the egg to complete the blood pregnancy test to determine whether she is pregnant or not.