Egg white CM?

Me and my partner are avoiding pregnancy using pull out and attempting to avoid during my most fertile days. “Not trying but lazily preventing” as in we could cope with a pregnancy and baby - long term relationship, we have a mortgage, good family support, we both work etc etc. (It’s worked for us since November last year)

I’m trying to use more natural ways such as learning about CM and how it changes throughout your cycle. We had sex yesterday, usual he pulled out on time everything was fine. And I’m suppose to be fertile in a few days. Today I checked my CM and it was like raw egg white. I know that has something to do with ovulation, does it happen before or during? Did I ovulate early?