Help?

Nicolle • 26 - TTC our rainbow baby since August
This is my first month using clear blue advanced ovulation kit, below is what I have experienced...
Cycle day 12- blank circle 
Cycle day 13 - Solid smiley (stayed for 48hours)
Cycle day 15 - blank circle
Cycle day 16 - flashing smiley
Cycle day 17 - flashing smiley
I'm totally confused with it, on cycle day 14 which was within the 48 hour period I noticed the egg white cm, last night (cycle day 16) I noticed some really think white cm and today cycle day 17 it's clear and watery
Any advice ladies?