My period was set to start yesterday according to Glow, but I'm generally a couple of days behind that. For the last three to four days I've had very sensitive and tender breasts so I kinda thought maybe it could finally be happening. Last night though I had a dark discharge, like brownish, that you get as your period is trying to start. So I'm a little disappointed thinking that obviously AF is coming. Really trying hard not to stress though and stay positive for next time.