- Jun 2, 2017
- 1,145
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There are two blood tests: the qualitative test (is hCG in the system), and this is similar to the home urine test - and has a similar reliability; and the quantitative which measures amount of hCG in the system and is thus more accurate.
My understanding is many doctors use a urine test along with a sonogram since those can be done in house for immediate results. No need to send a blood sample to a lab.
An abdominal ultrasound can usually detect a baby's heartbeat if you are at least 8 weeks into your pregnancy. If your pregnancy has a gestational age of less than 8 weeks (between 6 and 8 weeks), a transvaginal ultrasound (inserting the ultrasound probe into your vagina) is usually needed for accurate results.
So: Dee gets pregnant at the height of her ovulation - then 7 days later her period would not start. 14 days later when her period would be ending she would be wondering what happened.
Then: She takes a home pregnancy test. Even assuming if she took this early, if she is running higher in hCG, she’ll get a positive home test sooner that would be expected.
Doctor: Then she goes to the doctor who also does a urine test (or even a qualitative blood test), which comes back negative due to the hCG high amounts which overwhelm the testing antibodies. So she gets a negative result.
Ultrasound: Meanwhile, the ultrasound finds nothing because Dee cam in so early that neither the abdominal nor a transvaginal ultrasound are effective.
My understanding is many doctors use a urine test along with a sonogram since those can be done in house for immediate results. No need to send a blood sample to a lab.
An abdominal ultrasound can usually detect a baby's heartbeat if you are at least 8 weeks into your pregnancy. If your pregnancy has a gestational age of less than 8 weeks (between 6 and 8 weeks), a transvaginal ultrasound (inserting the ultrasound probe into your vagina) is usually needed for accurate results.
So: Dee gets pregnant at the height of her ovulation - then 7 days later her period would not start. 14 days later when her period would be ending she would be wondering what happened.
Then: She takes a home pregnancy test. Even assuming if she took this early, if she is running higher in hCG, she’ll get a positive home test sooner that would be expected.
Doctor: Then she goes to the doctor who also does a urine test (or even a qualitative blood test), which comes back negative due to the hCG high amounts which overwhelm the testing antibodies. So she gets a negative result.
Ultrasound: Meanwhile, the ultrasound finds nothing because Dee cam in so early that neither the abdominal nor a transvaginal ultrasound are effective.