Does EWCM mean you've actually Ovulated?

For some reason i've always worried i'm infertile. No particular reason just an irrational paranoia. Me and partner have been together 8 years and for most of that used the withdrawal method and no pregnancy scares at all. Now we've started actively trying the past few months and nothing. But every cycle I do get a lot of EWCM, just wondering if this indicates an egg is actually released? Or if your body will produce EWCM anyway. Can I take this an a good indicator for fertility?