1/03/14 i had a miscarriage at 8 wks, i had a period 2/6/14, but no period since. ngt hpt 3/7/14. did i test too early, should i be concerned?

Possibly: You write that you had a negative pregnancy test a week ago. Am i to assume that now a week later you're still not having it. And the pregnancy test is still negative? If that's the case then your cycle might be a little off. If you're trying to conceive, best thing to do is just to wait for your body to cycle again. Take good care of yourself, eat right get lots of rest and decrease your stress.