it is but i doubt there would be after that long.
i did a hpt almost 3 wks after my m/c ( not the same i know, but similar.....) it came up soooooooo faintly that you couldnt see it at arms length.
i would assume that after a month or so your hormones would go back somewhat to normal, esp if your cycles have resumed normally, but i am not an expert....... i could be wrong!
sorry not much help am i?