Opk positive in morning negative just now..

Chelsey
I'm taking clomid and I'm now on cd14 I ended clomid on cd8. I've been getting negative opks until yesterday morning I got one that was darker and this morning even darker, I took them with my fmu. I just got home and took another one and it was negative? I had intercourse last night, and going to try tonight.. Do you think I missed my window? I've been testing and I have cramps and my pelvis feels a little tight.. I'm hoping this round is it for us and we get pur miracle.. If not I'll he heart broken.. The one on the left is this morning the right is last night. The one alone is about 10 minutes ago..