Positive Opk and spotting?

Kim

Ok so I've googled and get this can be normal for some but I'm my 17 years of dealing with my cycle ( even non ttc and starting and coming off birth control) have I had mid cycle spotting on the same day I pick up an Lh surge on OPK... not even when my cycle was at it's wonkiest after mc last year...

So I know it's probably ok and probably a sign of ovulation but does anyone else do this? There's nothing else this could be on cd 16 right?