50 days after menopause blood test to check pregnancy is very unlikely to be wrong, it is recommended that ultrasound and serum human chorionic gonadotropin review after 1 week to determine whether pregnancy. Women who have stopped menstruating for 50 days can take a blood test to check the serum human chorionic gonadotropin level to determine whether they are pregnant or not, because it is an instrument to check the level of human chorionic gonadotropin in the blood, so it can not be ruled out that the instrument in the process of testing will make mistakes, which may lead to errors in the test results, but the possibility of error is very small. It is recommended that women can undergo abdominal ultrasound and serum human chorionic gonadotropin and progesterone tests after 1 week. If a woman is pregnant, and the pregnancy is intrauterine, the gestational sac will be detected in the ultrasound examination. It is recommended that women can go to the hospital for specialist counseling to determine if they are pregnant based on the time of menopause, the time of coitus, and laboratory tests.