Hey thanks! Do I have to use fmu with first response? Having trouble to hold out for 4 hours without going to the bathroom ...
With the FR ones that aren't the early detect ones it's best to hold on for as long as you can- i think 3hrs is the other recommended time frame. If you got early response ones you can go pee now. Best of luck.


Sent from my iPhone using Tapatalk so sorry if I'm confusing you