I had some CM like what you describe in the last 2 cycles - it was like EWCM except white.

For a while I worried that I hadn't ovulated, but my temps had a pretty clear shift - that's one of the advantages of temping I guess.

I eventually decided that it was just a large amount of sticky CM - it can be stretchy too, but doesn't stretch as far as EWCM. Also, it is not clear like EWCM. It looks a bit like rubber cement, and I have seen sticky CM described as rubber cement.

Hope you get a BFP this month!