What does this mean? Should I be concerned?

Hi ladies! I'll make this quick. I'm TTC baby #1 & working on cycle 6 now. I usually catch my spike using opk'S, but this time, I got the results in the photos. I can't tell if it's positive or negative or close, but I tested again 12 hours after these photos & the test line was even fainter. Did I not ovulate this cycle? Could it have been a quick spike that I just failed to catch? I haven't had this issue before & now I'm discouraged. Thanks!