i'm currently between 3-5 weeks. the doctor cant confirm how far along i am because my hcg level is only 63 and its too early for an ultrasound. i'm having cramps with light pink/brown discharge (possibly spotting) that comes and goes. there is no blood clots or anything but i am Rh negative. i have had a miscarriage before but this seems different. i dont know if i need to be worried or not.