hoping you can help... opk.

Heather • 💙Otto Wayne 9/7/18 💙💚Owen David 5/22/20💚
So I'm not sure if I'm going to ovulate or not. Only one working ovary. Second round of clomid, Last cycle I took 50mg days 5-9 and ovulated on day 19.... This cycle was 50mg days 3-7.. The opk got darker and then lighter (which happened last month) and then started to get darker again and now is almost non-existent. What do you think? Still early or maybe I'm not ovulating this month?... or do you think I missed it? I tested in am and pm and never got a 'positive'... these are all from pm.
Cd 11
Cd 12
Cd 13
Cd 14
Cd 15