Positive?!?!?!

Brittany • 31 husband is 29 married August 2015 together 7 years. Mommy of two boys one 5 and second is 20months!
I had to run out of a meeting this morning to get sick... I think I'm in my fertile window but my last period was super light which I really uncommon for me... Now the only reason I tested is bc I NEVER get sick like that and now I'm not sure if there is a faint line or not.