Answered by crazy_runner - Oct. 11, 2011 9:16am
I always see them at Wal-Mart. It guesses how far along you are based on your hormone levels. If your hormones levels are higher or lower than the average woman it may not be as accurate. Also, if you are pregnant with twins you'll generally have more HCG, therefore the test will tell you that you are farther along than you actually are.
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Answered by Fifidub - Oct. 11, 2011 1:45am
These are the regular clearblue digital pregnancy tests. They have a window giving you an estimate of when you concieved based on your hcg levels. However it's quite broad, I think it will say 1-2 weeks since conception or 3-4 so it's not specific but a useful guide if you don't know when you ovulated. Bear in mind this is from conception, not from your last period which is the measure that is used medically when saying how far gone you are.
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