EWCM and breastfeeding?

We’ve been ttc now for several months and I still occasionally (less than once a day) nurse my son. I am menstruating and ovulating, but I’ve noticed that I never get EWCM anymore like I used to before I had him. I get the wet stuff, but not the super stretchy egg white stuff. Has anyone else noticed that?

I’ve stared using opks because I find that I can’t rely on cervical mucus alone to predict when I’m ovulating