Confused

Okay I'm super confused... I took a ovulation testa on aug.8,9,10,12 on the 8th it was very noticeable ( but not dark enough to be a positive ) on the 9th it was slightly noticeable on the 10th there was nothing now today it's noticeable again.... not sure what is going on... can't get a good picture of today due to phone is being stupid.... am I seeing things or what