So I have been testing positive for about 4 days but I have been lightly bleeding for 2 days with mild period like cramps went to the er they said I had a hcg level of 21 so I was either very early on or miscarrying they saw nothing in the u/s but said it could be to early on to see anything but I am testing positive on ept an c/b digit as well as poas test which should take more than level 21 hcg I am confused the cramps are gone but still lightly needing could I have already miss carried or is there a chance??? Goin back for hcg test tomorrow !!!