Egg white CM but low opk?

Hi! I'm on CD 11 and have been using clearblue advanced digital opk along with clearblue fertility monitor every day for a week and still showing low fertility.  My periods do range from 27-30ish days, and this is our first cycle TTC and I feel like I have been quite obsessive.  Do you think I'm going to skip my ovulation or maybe I just have a short high period before peak? This morning I have definite egg white CM for the first time this cycle and I was so excited to check my opks and then so bummed with the results!  I'm not sure what to think!