I'm nervous.

Okay, so I got a faint but easily noticeable positive yesterday in the morning, my boyfriend even saw it. But, I took another just out of curiosity today at 8:00 pm and it still came up but it was a lot more faint than the one I took yesterday. I was also supposed to start my period today, but, it never came. I've been feeling a little cramping off and on all day. So it's making me nervous of course... Is it normal to feel mild pains and is it normal what the tests did ? I'm freaking out... please comment with experiences of so...