Early pregnancy test accuracy
Common Questions and Answers about Early pregnancy test accuracy
pregnant
i am wonder how accurate dating scans are in early pregnancy. i had one at 5,10, and 12 weeks. im not %100 sure but i think my lm was around june 30th. The only time before july that we had s ex was june 4th. and i drank alot of alcohol during june and now am worried that the scan could be off by that much. What do you think? how many days/weeks could early ultrasound be off by?
It's possible that you are pregnant based on your symptoms, but they are basically the same symptoms are menstruation. It will hard to know for sure until closer to 15-16DPO. Some pregnancy tests could tell you at this point, but only with about 30%-50% accuracy this far out. If you are really worried, go ahead and try, but this early, you could still be pregnant even if the test results in negative.
One reason for a false negative pregnancy test could be that you took the test too early. Another reason could be erratic technique or missed reaction time. For accuracy in home pregnancy tests it is essential that you read the test results in the stipulated reaction time. If you let the test sit for too long (after the instructions on the box tell you), the test is invalid. This may cause it to show false negative results.
pregnancy tests accuracy differ from one to another. accuracy depends on the level of HCG (pregnancy hormone) it can detect. some give u a faint line (mostly ones with the pink dye) and others give u a ++ only when ur HCG level exceeds the level its meant to detect.
take another test with first morning urine preferably FRER aka first response, or wait until u miss ur period then test again. any test then shud b able to pick up ur pregnancy since ur HCG is expected to exceed 100 mls.
SSBD!
I am a nurse and i have a few questions reguarding the accuracy of early ultrasound dating. My last period was November 17th, 2011. I had a positive pregnancy test on December 22nd, 2011. I went in for my first ultrasound on January 26st and measured at 9 wks 1 day. Everything seems to be right on track!
4-6 weeksis 95 percent accurate with standard antibody testing, 6 weeks and 3 months is probably the best times to test. At 6 weeks your result is highly unlikely to change, but experts say to test at the 12 week mark or 84 days for a conclusive result. After that you can be sure of your status.
A week is probably too early to feel any physical symptoms. But if there is a possibility then its never to early to wonder. Find a pregnancy test that detects early hormones, you'll still have to wait a week or so before your missed period, but kmowing is knowing!
Different pregnancy test have different sensitivities. Meaning the pregnancy hormone has to be higher in some than others to get a positive result. Look on the box and see what they require. I am off to WalMart in a bit and I will look for you. I took expensive pregnancy test with one of my boys and was more than 6 weeks before I got a positive. But Dollar Tree.... where everything is a dollar....test gave me positive results right away.
My sisters in law used the test.
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