hi well im 8 weeks pg and i have heavy bleeding on the 5th week and i was soooo sacred and they called it threatened miscarriage and it was dark red and it was outside of my cervix so it was ok, and now i havent bleeded since, but i used to have like brown discharge or old blood i dnt know but i think ull be ok, maybe ur levels are low cause u just started ur pregnancy, but just try staying off ur feet and dont pick up nothing heavy!
the worst possibilities here are miscarriage and ectopic pregnancy. you may also be having what is known as a threatened miscarriage, which basically means that there is something posing a threat to the baby that may heal itself or result in a miscarriage. i had the latter this pregnancy. all is well now and am 30 1/2 weeks. the best outcome is that you're just bleeding ( which does happen ) and baby will be fine. i wish you the best of luck.