If someone had done intercourse (sex) 5-6 days ago without any protection. Will ultrasound of belly can tell about the pregnancy or not?. Without urine test can pregnancy be detected?
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Within 5-6 days after intercourse pregnancy can not be detected by any method including Ultrasound. Confirmation of pregnancy can be done with by urine or blood test after 45-50 days of your last period.
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You can confirm pregnancy by urine test when the ovum gets fertilized and implanted in the uterus and have started to produce hCG (human Chorionic Gonadotropins) which are excreted in urine and detected by Urinary Pregnancy Tests. Urinary Pregnancy tests are qualitative and quantitative ones. Quantitative tests are more specific and more confirmatory (less false negative) than qualitative tests. Quantitative blood tests and the most sensitive urine tests usually begin to detect hCG shortly after implantation, which can occur anywhere from 6 to 12 days after ovulation. HCG levels continue to rise through the first 20 weeks of pregnancy, so the chances of false negative test results diminish with time (gestation age). Less sensitive urine tests and qualitative blood tests may not detect pregnancy until three or four days after implantation. Menstruation occurs on average 14 days after ovulation, so the likelihood of a false negative is low once a menstrual period is late. So by sensitive quantitative urinary pregnancy tests you can detect pregnancy after 20-26 days of last menstrual period. Detecting a Fetus on Ultrasound A fetus can be detected as early as the sixth week of pregnancy from the starting date of last menstrual period. Many ultrasound technicians prefer to wait until at least that point in the pregnancy to do an ultrasound and many prefer waiting until the eighth week of pregnancy when more of the development of the fetus can be seen. Transvaginal Ultrasound Transvaginal ultrasound can be used to detect a fetus or gestational sac up to a week before traditional ultrasound. A transvaginal ultrasound is performed by inserting a lubricated wand into the vagina and performing the ultrasound internally. Transvaginal ultrasound can be used when the mother’s bladder is empty, making it difficult to see the fetus, or when the fetus is too small to detect on traditional ultrasound.
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