This is quite long and confusing but here goes- took a superdrug test day before AF due and got v faint positive. Went and bought asda two pack. Did one later that night and negative, then one in the morning v faint positive. Bought two more asda ones. Another negative that night then positive in the morning. At this point I'm pretty confused to say the least (and fed up of spending money on tests) so bought a pound shop strip test kit which just came out negative. I know you can't get false positives so could they just be evap lines?? What's going on??!!