What do the variables in the hardy-weinberg equation represent?

In the equation, p2represents the frequency of the homozygous genotype AA, q2 represents the frequency of the homozygous genotype aa, and 2pq represents the frequency of the heterozygous genotype Aa. In addition, the sum of the allele frequencies for all the alleles at the locus must be 1, so p + q = 1.

So you and your partner don’t get sexually transmitted diseases and so your partner doesn’t get pregnant