How long does it take for pregnancy to be detected depends on the patient’s reaction to pregnancy, physical condition, etc. The exact time varies from person to person, physically it can be detected as early as 3 months after conception, and detection can be done by detecting human chorionic gonadotropin in blood or urine 10 days after intercourse to determine if pregnancy is present. HCG can be detected at 7-10 days of pregnancy, and pregnancy can be considered at this time; the fetal sac can be detected by ultrasound at 40 days of pregnancy to confirm pregnancy; early pregnancy reaction can appear after 6 weeks of menopause, and the fundus can be touched at 2-3 transverse fingers of the pubic symphysis at 12 weeks of pregnancy, which is the earliest time when the fundus can be touched. If pregnant women have less abdominal fat, abdominal augmentation can appear, generally pregnant women can appear abdominal augmentation in 4-5 months, and pregnant women with thick subcutaneous fat can even appear abdominal augmentation after 5 months. In addition, the time of abdominal augmentation in pregnant women with twin pregnancies or multiple pregnancies will be earlier accordingly. In addition, pregnant women who do not have abdominal augmentation for a long time should go to the obstetrics department of the hospital in time to avoid fetal abnormalities and other conditions.