Cervical mucus question

Heather • TTC #2, for 3 1/2 years
Okay, so I know that the cm that's like an egg white is when your at your peak ovulation. but, I only get that 1 day every few months. I was pregnant in 2012 had my daughter in 2013, and before that I always used to have cm like that. But ever since my c section its VERY VERY rare it like that. Could that be why I'm not getting pregnant? Like maybe the. C section screwed up something?