Please help with this assignment of mine, I don’t completely understand. Describe the development milestones that occur in the stages of. Please help with this assignment of mine, I don’t completely understand. Describeÿthe development milestones that occur in the stages of fertilization, embryonic development, fetal development, childbirth, and postnatal .Include whenÿeachÿdevelopmentÿmilestone occurs.Describe the key changes that happen within the child and mother during eachÿmilestone.Highlight on your timeline when life begins, and provide your scientific rationale.