WTF Digital Pregnancy Test?!

So, I've been thinking I'm not pregnant. 10 days into the 2WW and no symptoms other than bitchiness and crying easily. Could very easily be PMS.

Until today, where I've been kinda nauseous in addition. 

The nausea hit me around midday, so I made sure I had a "bladderful" when I left work. My fertility monitor came with pregnancy tests - digital ones - so, I came home and peed on it. Saw the hourglass rotating, put it in a drawer to come back to later. 

Chatted with hubs for a few minutes, then went back to look at the test...

Nothing. Blank screen. No hourglass, just nothing. 

"MOTHERF$@#%*!"

Aaaaand now I have to wait til tomorrow...