I took a test yesterday and looked at it later and it had a very faint line that I assumed was an evap. because it was after the 10 minute time frame. Well, I took another today and again looked later and I see another very faint line in the same place. I've been taking pregnancy tests for a long time and yesterday's was the first time I've ever seen an evap. line. Are they actually common or is it possible I'm just testing really early and it's super faint. I'm 10-11 dpo.