If 5 days pregnant means 5 days after the fertilized egg has been laid, you can test for pregnancy by checking blood for human chorionic gonadotropin (HCG), and a positive HCG is considered pregnancy. If 5 days pregnant means 5 days after menopause, you can test whether you are pregnant by checking blood HCG and early pregnancy test.
Fertilized egg enters the uterine cavity for implantation 7~8 days after intercourse, and after implantation, HCG can be detected in the blood after secretion. After menstruation is delayed, HCG is elevated in the urine and can be detected by applying early pregnancy test paper, and a positive test means pregnancy.
Checking blood HCG, early pregnancy test paper are commonly used methods to detect early pregnancy, usually draw blood to check HCG relatively to use early pregnancy test paper will be a little earlier. You can choose the test method according to the time of intercourse or the time of delayed menstruation.
A positive HCG test can confirm pregnancy, but it cannot determine whether the pregnancy is intrauterine or ectopic. If an ultrasound reveals a pregnancy sac inside the uterine cavity, an intrauterine pregnancy can be determined.