Negative opk but lots of ewcm

Amanda • Happily married for 13 years ❤️ Mommy to 8 beautiful kids
I'm only on cd7 and don't usually ovulate until cd16. I had a really short period this cycle so I started testing early thinking it might affect the day in which I ovulate. So my opk this morning was very clearly negative but I have ewcm (when I wipe and just randomly) So is my opk wrong and I'm just producing a lot of cm for another reason? Any insight is appreciated! Thank you 😊