In Illinois you have the fundamental right to make decisions about your reproductive health care. First Trimester (up to 12 weeks): Gives a woman an absolute right to an abortion in the first three months of pregnancy.Several core human rights principles and obligations animate our analysis of the right to reproductive autonomy in the United States. 14. Because a woman's right to make her own medical decisions is based on another right that is not in the Constitution either. Illinois had to be overruled at least in part. In 1973, the Supreme Court held in Roe v. That "the word 'person,' as used in the Fourteenth. Amendment, does not include the unborn. If you are under 18 years old and need an abortion in Illinois, you do not need to notify or get permission from a parent or legal guardian. Except as provided in the No Taxpayer Funding for Abortion Act .