Not sure wether to believe it. AF due tomorrow. The top one i took yesterday i actually thought was neg as there was only one line but i noticed the screen looked funny like the test strip had moved down and i was only showing one line. I did one this morning just to double check and 2 lines instantly. I went back to the old test and pulled it apart to fix the strip so it was in the same place as my new test and sure enough the lines fit in the window. It was like the strip inside was upside down coz i could see part of the fluffy absorbant strip in the window which i assume u shouldn't see. Ill check with a clear blue digital to double check