Just a helpful tip to the girls who have gotten those terrible indent lines or false positives on the FRERs and then not end up being pregnant. You can email the company and let them know what you experienced and they will give you your money back on what you paid. After over 3 boxes worth of them (even pink lines) and not ending up pregnant I will never be going with this test again. I work in an ob office as well and we’ve had girls get the “positives” on the FRERs and then they ended up not being pregnant. I know how frustrating it is to spend money on something that got your hopes up, so just wanted to share what I learned :)