Could I be pregnant??

Okay, so ok Sunday June 1st, I took a pregnancy test first thing in the morning with my morning pee. I was 13 DPO. I stared at it for the longest time ever and I caught sight of an insanely faint line. I took many pictures of it and posted it on the faint lines thread and everybody said it was a BFN :( I got a comment yesterday that said that a girl saw a more visible line when she inverted the picture. I inverted it and looked at it for myself and I saw the second line!! I posted the inverted picture yesterday and I got many more comments saying that it's a BFP!! I was so happy, I cried! AF was supposed to come yesterday. But yesterday, and today I've been feeling something like pre-period cramps. I haven't had the time or money to buy another test /: what do you ladies think. Could I be pregnant!?