If you're not sure you're at 7 weeks yet, use our easy pregnancy calculator to double check. Already purchased the test? No worries, you can hold on to it until you're 7 weeks pregnant – the test kit is good for a year. To avoid inaccurate test results, it's imperative to wait until you're 7 weeks pregnant to ensure the level of Y chromosomes is high enough to read. We know it's hard to wait! SneakPeek looks for Y chromosomes in the fetal DNA found in mom's blood. Therefore, a miscarriage will not affect your current test results.Ĭan I use the Sneak Peek test if I’m not 7 weeks into pregnancy? You’ll get an email the subject line “Your SneakPeek Result Is In!”īe sure to check all your folders including Promotions and Junk Mail in case your email filter redirects it, or use your email search tool bar to search for sneakpeekresults.ĭoes a previous miscarriage affect my test results?Ĭlinical studies have shown that fetal DNA clears rapidly from the maternal bloodstream, within 1-2 days. See the peer-reviewed published study that indicates this test is 99.1% accurate as early as 7 weeks into pregnancy in the International Journal of Pregnancy and Childbirth (Int J Pregn & Chi Birth. This method is known as noninvasive prenatal testing (NIPT) and is safe for both mom and baby. If no Y-chromosomes are found, mom is carrying a girl. Y-chromosomes would only be present if mom is pregnant with a boy. Using a small sample of mom’s blood, SneakPeek tests for the presence of male DNA (Y-chromosomes). For fraternal twins, finding male DNA means at least one baby is a boy, but cannot distinguish if the second is a boy or girl.ĭuring pregnancy, cell-free fetal DNA is released by the placenta and can be found in mom’s bloodstream. If no male DNA is found, then both babies are girls. In the case of identical twins, if male DNA is found, then both babies are boys. SneakPeek looks for male DNA in the fetal DNA found in mom's blood sample. Can sneak peak determine the gender of each one? See the peer-reviewed study in the Journal of Pregnancy and Child Health. In a separate laboratory test, fetal sex was accurately determined in 99.6% of 241 pregnant women at 9 weeks gestational age and later into pregnancy. See the peer-reviewed study in the International Journal of Pregnancy and Childbirth (Int J Pregn & Chi Birth.
In laboratory testing, SneakPeek accurately determined fetal sex in 99.1% of 108 pregnant women at 7 weeks gestational age. How accurate is the Sneak Peek early gender DNA test? This blinded study showed that SneakPeek Early Gender Test is highly accurate for fetal sex determination in early pregnancy.Frequently Asked Questions about Sneak Peek Gender DNA Testing.
SneakPeek accuracy, sensitivity and specificity were each 100% for fetal sex identification. Fetal sex for all samples was unknown prior to genetic testing and was confirmed via sonographic evaluation at the conclusion of the study. Assay precision data showed minimal variation and high reproducibility of results. SneakPeek correctly identified fetal sex in all samples. Y-chromosome DNA was detected in all samples from women carrying a male fetus. Sixty maternal plasma samples were tested twice, on different days, to assess the precision of SneakPeek.Ĭell-free DNA was detected in all maternal blood samples.
An autosomal control gene was used to measure total cell-free DNA (maternal and fetal cfDNA). Circulating cell-free DNA was isolated from a micro-volume of maternal plasma and real-time quantitative PCR was performed to detect fetal DNA using a multi-copy sequence on the Y chromosome. A multicenter-blinded study was conducted at four ultrasound clinics with maternal blood samples collected from pregnant women between 6 and 35 weeks of gestation.
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