When did I ovulate?

[Missbx]

Ff has not put crosshairs yet and ovu friend is saying I ovulated on cd10? What do you think of both my charts?

I thought I ovulated cd18
I got positive Opk and partial Ferning

https://i39.tinypic.com/315o7x1.jpg

 

[tinadecember]

I'd say cycle day 18.. as you didn't have any EWCM around cycle day 10.

Why ovufriend would say cycle day 10 I don't know! xx