A faint mark on the eleventh day after ovulation may be pregnancy, which should also be confirmed in conjunction with blood HCG levels. As the embryo starts to secrete HCG (human chorionic gonadotropin) 1 day after the embryo’s implantation, the pregnancy is confirmed by blood HCG test earlier than the early pregnancy test, when there is a faint mark on the test paper on the eleventh day after ovulation, it may be caused by the short period of time and the low level of HCG in the urine, which suggests that it may be pregnant, and blood HCG test is also carried out to confirm whether the pregnancy is pregnant or not. Early pregnancy through blood HCG test or early pregnancy test paper to confirm pregnancy, but also must follow the doctor’s instructions in the sixth week of pregnancy ultrasound to confirm intrauterine pregnancy. After a clear diagnosis, you should pay attention to proper rest, avoid heavy physical labor and strenuous exercise, increase diet and nutrition, continue to take folic acid on time, and follow the doctor’s advice to carry out prenatal checkups on time.