Confused!

Bea

I had a positive digital ovulation test and all symptoms on the 20th. (i had a negative result on the 21st) leading me to believe ovulation was pending.

Today im all crampy, and decide to take an opk. A digi and a regular.

My question is...if i did ovulate last week, why am i getting lines on these tests? Wouldn't they be stark white?

The digital did have a O not a smiley. But what the heck? Did i not ovulate? Or will an opk always have a line. Im so confused. Im here thinking im 6dpo, now im not sure.