Is it possible to Ovulate twice or Opk test wrong ?

Katy

So I tracked my ovulation and got a positive on the 27th but I checked my cervical mucus and had almost none! Which was weird . Before trying to conceive I noticed there was a couple of days where my skin is baby smooth and I thought that’s when I was ovulating . Right now I’m in the baby smooth skin week and I check my CM and it’s wet and stretchy. Now I’m wondering if i got my ovulation day wrong . I’m 10 dpo , i tested this morning and got a BFN. Has anyone else experienced this ??