I have a question ladies. I’m new to <a href="https://play.google.com/store/apps/details?id=com.glow.android">tracking ovulation</a> and was wondering why you aren’t supposed to test with FMU? Dumb me tested with fmu this morning and got a huge negative 👎. My ovulation day is supposed to be on the 10th.. is it normal for it to be this negative? And do they get darker pretty fast? I need help lol.