Código Civil y Comercial: Artículos 19-21 (Comienzo de la existencia)
Article 19 of the Code states that life begins at conception. Article 20 presumes, unless there is evidence to the contrary, that the maximum duration of pregnancy is 300days and the minimum duration is 180 days, excluding the day of birth. Article 21 mandates that the rights and obligations of the person conceived or implanted in the woman are irrevocably acquired if the child is born alive. If the child is not born alive, the person is deemed to have never existed. The presumption is that a person is born alive.