Most of your body cells contain 23 pairs of chromosomes – 46 chromosomes in all – which are faithfully copied when the cell divides by mitosis. The pairing of chromosomes makes cells diploid, containing the entire DNA genome.
Exception: Male sperm cells and female egg cells, collectively known as gametes, are produced by a special kind of cell division called meiosis, resulting in haploid gametes – each containing 23 unpaired chromosomes representing just half the genome.
During fertilization, the haploid gametes merge to form a diploid zygote, restoring a full complement of 46 chromosomes from which the embryo develops.
You might be confusing ordinary somatic DNA with mitochondrial DNA. While a sperm has barely enough mitochondria to power its flagellum, the egg cell (ovum) is loaded with mitochondria throughout its abundant cytoplasm. Hence the zygote inherits almost all its mitochondrial DNA from its mother, and mitochondrial DNA is passed on almost exclusively mother-to-daughter. This enables a parallel line of genetic descent distinct from ordinary inheritance, serving as an independent tool for genetic research.
As for two sperm and one enucleated ovum (with its nucleus removed, normally a step in cloning) all resulting in a normal zygote, is pretty far-fetched as far as I know. There’s a whole complex sequence of cytoplasmic and nuclear events that must occur, so it’s doubtful anything would result.