Spotting some light bleeding or brown spotting is a normal thing during the first trimester, i passed that stage during my 5 week,am now 7 weeks pregnancy....if it becomes so heavy bleeding and very sharp cramps u should consult your doctor immediately.
See your doctor. No one here can tell you if you are, or aren't miscarrying. But it's a good idea to talk to your doctor, because they can do a blood test and make sure your HCG is rising and not dropping or get you an ultrasound to see if bubs is still developing. I hope all is okay.xx