My daughter became pregnant when she was 15. The man was 20. I really feel that I should report this-but the baby will be 3 in
September. Is there a statute of limitations on reporting this? Who would I go to when filing a report? And lastly, could his mother get in trouble? (He lived with her at the time and it was at their residence that the contact happened. I did not know that she was seeing this man until it was too late and she was allready pregnant.)

Generally the following statute of limitations applies:

Criminal Prosecutions
Citation: 720 Ill. Comp. Stat. Ann. §§ 5/3-5; 5/3-6

For a felony, it is a period within 3 years after the commission of the offense.
For a misdemeanor, it is a period of 1 year and 6 months after the commission of the offense.

The statute of limitations for certain offenses against a minor extends for a period of 20 years after the minor reaches 18 years of age. These offenses include:

• Sexual assault of a minor
• Aggravated criminal assault
• Predatory criminal assault of a child
• Aggravated criminal sexual abuse
• Alleged suspected commission of these acts

A district attorney would determine which limiations apply in your situation.

You can file a complaint with the state, county, or city police. Depending on your local statutes and procedure, you may also be able to file a complaint directly with the District Attorney.

It would be very unusual and is highly unlikely the mother of the 20 year old could be charged with a crime simply for owning the residence. Her son is a legally accountable adult.