Massive amount of stretchy/stringy jelly-like cm?

I’m 12 months pp and still nursing, so haven’t had a postpartum cycle yet. I got my cycle back around 15 months after our first son. I’ve been having high/borderline positive lh tests. Today when I wiped I had a massive amount of super stringy jelly-like cm. It basically looked like when I lost my mucus plug with our first row children. It isn’t there every time I go to the bathroom, though. Just an insane amount of it that one time. Has anyone had something similar? I would assume it’s fertile cm, but my lh test is lower today than it was earlier this week. Or even a sign of implantation or early pregnancy? Or just absolutely nothing and I’m over-analyzing..