I took a pregnancy test today and it was so light you could barely see it but I’m supposed to start my period in 3 days and I’ve always gotten really dark positives 6 or so days before I was supposed to start. Does this mean my HCG levels are really low? Is this normal? I miscarried almost 4 weeks ago and know this is a new pregnancy because my levels returned to normal within 2 weeks. So I’m scared I’ll loose it again.