I ovulated about a week ago. Fairly certain of this.
This morning I got a big lump of yellow stuff after a BM, which basically looked like snot/phlegm. Very stretchy and didn't dissolve in water: it sank to the bottom. It looked a bit like a mucus plug.
We DTD last night with lube (not a huge amount) but I'd been to the bathroom immediately after and once during the night (just pees though). I've never had something like this after sex before: normally it's just the clear shiny stuff which disappears pretty quickly.
I can find stuff on line about whether it's EWCM or semen, but nothing about how to tell if it's residual lube (searching for that brings up some rather dodgy looking sites..) or something else.
Any ideas?