What if a negitive result on first respone rapid result doesn't fade after 10min? What does that mean? Does it need to fade away? Please help

First Response Rapid. Result instructions indicate "1. Test: put the tip of test into urine for 5 seconds on the day of your missed period or any day thereafter. 2. Wait 60 seconds. 3. Read: two pink lines is a pregnant result (even if either line is faint)." *** early result pregnancy test: "just hold the test in your urine stream for a few seconds. Read the result in 3 minutes. Two pinks lines pregnant, one line >>.