The one you're forgetting is the child. The child is a human being and should also be able to decide what medical care is best for them. But the child is unable to do so, therefore abortion must be morally wrong. I have abortionists say that they have had so many patients regretting their abortion, but not a single one regretting having her child. The child in the womb is a unique human being that will never exist again. The heart starts to beat after about 22 days of pregnancy.