SneakPeek Clinical DNA test determines your baby's gender as early as 6 weeks. We suggest waiting until 7 or 8 weeks, in order to increase accuracy. It is best that you have had an ultrasound to ensure that baby is measuring big enough for bloodwork to be accurate. You can add our add-on ultrasound to ensure that baby is big enough (we do not perform measurements, but we do perform thousands of ultrasounds and can tell you if baby is big enough for bloodwork). Your bloodwork is drawn via venipuncture by a registered nurse. This improves the accuracy of the test when compared to the at-home SneakPeek test. The accuracy rate of this test is 99.9% when you are 8+ weeks, and only slightly less, when you are 6-8 weeks. We draw your blood in the morning and then send it out via mail the same day (except federal holidays). If you cannot come for a blood draw in the morning, we can draw it at different times, but it will delay your results by a day or 2. When you have your blood drawn on one of our designated days, the results will return the next day from 7pm-midnight. We do not suggest having your blood drawn the day or two before your gender reveal party in case of a mail delay (if it is a large party). You must have initiated prenatal care before we can draw this bloodwork. This can be as simple as scheduling your first appointment with your doctor or midwife. SneakPeek does provide a money-back guarantee for the accuracy of this bloodwork. If you have inaccurate results, we deal with SneakPeek and the refund process is very simple for you.