What a beautiful bubba. You must be so proud XD
Everyone's cm is different so you have to learn your own cycle. Once you can read it, it's really obvious :-)
For me, I get LOTS of ewcm for quite a few days leading up to O. Once I've O'ed I almost immediately get some lotion cm. that's a big indicator for me. But I do have ewcm for a lot of my LP also.