HELP!!! First timer 😳

Vi
I took a pregnancy test this morning, seconds after I took it, the "not pregnant" line came up. I figured ok I'm not, then I remembered the instructions said to wait at least 5 min, I set it down and got ready for work. Came back 30 min later and found a "second" line but it's very light... Could this mean I am? 
We aren't afraid to be pregnant, my husband and I have been dating for a couple of years and we tied the knot this past December, I'm just lost. This is my first pregnancy test taken... I don't know if the pregnant line has to be as dark as the non pregnant or what?Â