No CM this cycle

Srr

I am 10 days away from my period, i have absolutely no CM this cycle it has been dry all the time(this is the first time). I have been taking opk strips and the lh surge is below.77 and never came high or peak. Is it something wrong? I read online it says it might be infertile or harmonal imbalance but it is happening for the first time. Please advise if it is normAl?