THICK WHITE/CLEAR DISCHARGE

Destiny
I'm in the middle of my fertility week
I'm NOT sexually active
I'm not on the pill or any hormonal meds
No itch, no smell
I've had it for the past 3 days.. It's incredibly thick, cloudy, mucus-like discharge and I can literally feel it falling out sometimes. 
What on earth is this??? 
Have I got an infection??