I had this yesterday. It’s built up stronger and stronger to get to this one which has been the strongest I’ve had. Today it’s gone back to quite faint. Do you think this could have been my ovulation?

I had this same thing happen to me and was told that since it wasn’t technically positive, it wasn’t ovulation. But sure enough, I started my period 14 days after that “almost positive”. I believe if I had tested earlier in the day, it would have been positive. But since I tested late, I just missed the high of my surge. So very possible that it could be the same for you. From now on I will test in the early afternoon!