Using CM to Figure Out Ovulation

So, according to Glow today is my first Fertile day and it continues till the 26th/next Friday. I checked my CM today and it is watery, maybe in between medium and heavy. I've never checked it for ovulation, so will it really look like egg whites when I ovulate and I'll be able to stretch about an inch between fingers?? My husband doesn't want to use opks unless we have to, so I'm worried about trying to time it right. Any advice?(learn more on Glow: https://glowing.com)