Menstruation is the most obvious symptom of pregnancy. Most women learn about their pregnancy through amenorrhea. After the menstrual period is delayed, we can use various methods to check whether we are pregnant, including ultrasound. Ultrasound can show whether the gestational sac is in the uterus. Next, let's take a look at how long it takes to delay menstruation for an ultrasound?
How long can I have an ultrasound if my menstrual cycle is delayed?
The time for B-ultrasound detection of early pregnancy is usually about a week after the menstrual period is delayed. You can go to the hospital for B-ultrasound examination to see if you are pregnant. If a pregnancy halo can be seen under ultrasound, it indicates pregnancy. The main purpose of early pregnancy ultrasound examination is to determine intrauterine pregnancy. Exclude ectopic pregnancy and trophoblastic diseases, estimate gestational age, and rule out pelvic masses or uterine abnormalities. Usually, a gestational sac can be seen in the uterine cavity after 35 days of amenorrhea. At 6 weeks of pregnancy, embryonic and primitive heartbeats can be seen.
How to detect pregnancy after menstrual delay?
The working principle of pregnancy self-test is to detect human chorionic gonadotropin (hCG) in human urine. Generally, on the 6th day after fertilization, the nourishing cells of the egg begin to secrete trace amounts of hCG, and blood hCG can be detected about 1 day later. This is the most sensitive method for detecting pregnancy, and if there is a positive hCG reaction in urine, it is later than in blood. Although many types of early pregnancy test strips indicate that women can perform pregnancy self testing after missing their normal menstrual period for one day, in reality, the sensitivity of each test strip is not the same, and the testing varies from person to person.
The above is the encyclopedia introduction about how long it takes to have an ultrasound for menstrual delay. In short, after the menstrual cycle is delayed, we can first use early pregnancy methods to check whether we are pregnant. After confirming pregnancy, listen to the doctor's advice again to find out when an ultrasound can be done. I hope this article can be helpful to everyone.
