Which of the following are in favour of abortion if it is necessary?

During the past quarter century, abortion has joined race and war as one of the most contentious subjects of controversy in the United States. It discusses human interaction where ethics, emotions, and law collaborate. Many have contemplated upon the meaning of abortion. One argument is that every child born should be wanted. The people in lieu of this theory are often referred to as Pro-choice activists. The opposing argument is that every child conceived should be born, this theory epitomized by Pro-life activists. A public consensus exists that when human personhood starts, the law must protect person. Many religions, organizations, and individuals have fervently held conflicting beliefs about when this transpires. This naturally leads to differing policies on whether a woman should have access to abortion or not.
      This brings us to the scientific aspect of the controversy. The interminable question surrounding the controversy is this: When does a baby actually become a baby? A female’s ovum and a male’s sperm are both clearly alive. They are living organisms ready to be joined as one to form a baby. It is pointed out, however, that women release a few hundred eggs in a lifetime. Almost all of these eggs are destined to die and be ejected from the body.  Little thought is given to these hundreds of deaths.  Again, little consideration is given to these deaths. Yet, a public consensus exists that they are not yet human persons.