Help please. Why would I have a positive opk twice in one month?

[Pmd1]

First one was day 11-few days earlier than normal.
2nd one was day 19- few days too late.

Usually I am day 15.

Had signs both times, a few around 1st opk. This time a lot of mucus, more than usual-very milky like suncream, but stretchy.

Anyone have any experiences?

It's possible you didn't actually ovulate the first time, which does happen from time to time, so your body tries again.

Ok. Am I too late,as missed lead up time and only caught tonight?