Is it normal to have a positive ovulation test 3 days in a row?! I know I ask a lot of questions on…

Is it normal to have a positive ovulation test 3 days in a row?! I know I ask a lot of questions on here, but my body is changing so much with the metformin. I usually only get one positive test, then the next day it's negative. But I've gotten positives 3 days in a row now. I'm just curious?