Ovulation confused.

Chantellerathmill

So I'm unsure when I'm ovulating as I was on the implant for 2 years and had it removed october last year ive had a cycle of 34 and 32 and a cycle in December witch was my first after the implant removal, so I know my body is back to normal now . I started doing ovulation tests and these are the 3 that I did today that have stood out and been dark but there all different in colour, can someone tell me if these are positive ovulation tests.