EWCM before AF?

This has been the strangest cycle for me. Yesterday I was out at a yard sale and I suddenly had this huge wave of nausea hit out of nowhere, so bad I had to go home. Later in the evening it happened again, but I ate something and it went away. I usually get nausea before a period so I figured that’s what it was. I’m due for AF tomorrow, but I woke up this morning and I have a ton of EWCM & my cervix is high and closed tight. I usually have the lotiony type of cm and a medium cervix at this point of my cycle. Has anyone else had this before a bfp? Or am I probably out this cycle?