Is there supposed to be a "HH" if in the pedigree, "H" represents the "X" chromosome that has the normal gene, "h" represents the "X" chromosome that has the hemophiliac gene and "Y" to represent the "Y" ?

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Yes, it can happen. Because the H stands for the X chromosome and the person has to two of them - you know that individual is a female (XX will be female, regardless of dominance or recessiveness of the alleles on those X chromosomes). And she will have the 'normal' phenotype, whatever that is, because we assume the capital H is dominant.