I am 5 weeks tomorrow (give or take a day) and I have been spotting. I wiped yesterday afternoon and mixed in with lot of CM was pinky/brown discharge which has really scared me. I was getting a few niggly cramps but nothing too strong. This morning, the same when I wiped. But if I touch my cervix, no blood. I have had no cramps today but am extremely tired and my back really hurts. Is this normal or should I get it checked out ?