If you're in doubt, do another one. I had a super faint second line when I got pregnant with DS2 so down to Boots we went and bought a second test, which came up much more convincingly. He's almost four now!
Omg I'm soo over the moon I took a clear blue digital and I defo am pregnant !! Only took 14 months and only 5 periods ! I better cancel my fertility scan now !! I can only thank this site for all the support I had from everyone !!