There are demographic statistics which list the number of blacks in Central America. By all accounts the number is quite low, particularly in the likes of Honduras. The likelihood of two blacks from Honduras and Guatemala hooking up to produce a child like the OP is very low. This implies the OP girl is lying.
And thise numbers are false. Keep in mind the migration of Caribbean workers and Garifuna to Central America and the "me no black papi" mentality prevalent among Afro Latinos