The worries begin...

Hey! I just got my BFP this morning (day of expected period). I thought I was put because 4 days ago I had an episode of pu I blood while wiping and then am episode of brown while wiping. Nothing since. I'm already worried because the line on the pregnancy test was obvious, but not super blazing like some I see. I'm also having cramps in my back and my legs, like I'm going to start my period. I've had 2 previous miscarriages and an ectopic, so I'm sure I'm going to be a nervous wreck!!