Warning ⚠️ (tmi)

Today along with some back pain I had a big blob of stretchy brown/yellow cm I am due to ovulate next week as I thought I had my period last week even though it only lasted 2 days and was very heavy with clots (my periods always last 4 days) so I assumed maybe it was a chemical but I didn’t test so I have no idea of knowing. Has anyone here heard of getting snot(gross) like discharge in very early pregnancy? Will test tomorrow but at work at the moment so can’t do it now! Grrr