I previously tested 'Pregnant' then did another test and got a 'Not Pregnant' result, or my period started. What does this mean?

I previously tested 'Pregnant' then did another test and got a 'Not Pregnant' result, or my period started. What does this mean?

The highest rate of miscarriage occurs during the first six weeks of pregnancy. Therefore, it is not uncommon for a test to detect pregnancy, then to find out that you are no longer pregnant at a later date. Since ultra-sensitive tests are able to detect lower levels of HCG, they produce positive results for all pregnancies, including those that occur very early on and might miscarry before any physical pregnancy symptoms manifest (including a missed period). These pregnancies are often referred to as “chemical pregnancies”. For this reason, we recommend that if you get a positive result with an ultra-sensitive OVRY™ Pregnancy Test Strip that you repeat the test with a fresh strip and a fresh urine sample after the date of your expected period, to confirm a positive result. If you are concerned about your results, seek medical advice.