I took a clear blue pregnancy test a couple days ago, i thought i saw a faint line but then came back hours later and there was a darker faint plus sign. is this evap? or a positive?

May retest in 1 week: May be positive. Home pregnancy tests are accurate and not affected by foods, herbs, common illnesses, sexually transmitted diseases, vaginal spotting, or medications. A test is reliable by 3 weeks after sex (3 weeks after when conception might have been) or 1 week after missing a period. If done sooner, a negative result may be due to testing too early such as less than 2 weeks after conception.