Spotting

Amy
Hello! I took a positive test a few days ago, actually I took 3. This is my first pregnancy and I'm about 6.5 weeks along. The past few days I've had cramping, sore breasts, I've been extremely tired. Today I had a some brown spotting, but only when I wiped. It happened every time I went to the bathroom, maybe 3 times. I just went to the bathroom again and when I wiped It was a brighter red. I'm really nervous that it's a miscarriage, but I've also read that it's completely normal. I'm not sure what to think! Has anyone had anything like this happen to you before? Thanks in advance!