Confused by my CM

Ashley
This is waayyy TMI so I apologize. I took an ovulation test yesterday and it said I wasn't fertile. But then today, I went to the bathroom and when I wiped I had an extremely long strand of CM literally hanging from the toilet paper. I'm talking like 6" long at least. I've never in my life! Looked like EWCM to me but I'm just so confused. I started taking Fertile aid (which contains Vitex)  about 2-3 weeks ago. Any thoughts?