phases of embryonic development

infographic unborn birth healthy evolution months pregnant prenatal development medical research background microscopic isolated transparent health blue clone human vector embryo egg growth stages pronucleus diagram structure chromosome process reproductive gynecology people developmental membrane fertility ovum division zygote cleavage uterus experiment woman female phase biology organism implanted impregnate baby stage embryonic pregnancy body reproduction artificial sperm medicine nucleus graphic design microbiology fertilization early embryology ivf fertilized fertile life cell morula scientific anatomy 4cell blastocyst science insemination