Took a test just now, 2 days before I'm due AF and I got quite a large streak down the middle. I'm pretty sure there was a very very faint line there in the test window while the streaking is present and after 10-15 mins the streak went completely and the very fain line remains. Could this be positive or has the streak made it invalid? I took 2 photos, one at the 3 mins (with streaking) and one when it cleared up. Anyone have any advice? 4th month trying now 😁