False positive on FRER one minute results

Shanice • Baby dust to all!!

Okay. I woke up this morning and thought I’d temp. It was 98.6. I’m expected to get AF today. No sign of her just some light cramping on my right side. My temperature is what prompted me to take a test. As I’m sitting on the toilet twiddling my thumbs I look down at my test and I see the test line getting stronger and stronger... and the entire time I’m like oh my god oh my god.... so I said calm down it hasn’t quite been a minute yet. I look back at my line at the minute mark and it was GONE... like completely gone. Has this happened to anyone. Yesterday I took a test and it was negative.