Have I ovulated?

Nicola • Married. 29 years old. Mmc at 11 weeks July 2015 and mc at 4+3 weeks Nov 2015. Pregnant with baby girl due 30.07.17 ♡♡
My line got very dark but not as dark as control line (2nd opk up from bottom) but is now getting lighter. Do you think I've ovulated? X