If you were brought into the US illegally, and are 19 years old now, you began accruing unlawful presence starting from your 18th birthday. As you have over one year of unlawful presence, you will trigger a 10-year bar when you leave the US for any reason. Your age at entry is no a defense to the bar. You would need to have your spouse apply for you, and then you apply for the immigrant visa at your home consulate with a waiver to forgive the immigration violations of the illegal entry, unlawful presence and unauthorized employment. Depending on how your parents entered the US and if anything was filed for them prior to April 30, 2001; you may be able to use INA section 245(i) to apply for your adjustment of status here in the US with the payment of a $1000 penalty rather than the IV consular processing and the waiver. Get all the details from your parents and consult with an experienced immigration attorney.
Answered on Aug 01st, 2011 at 12:13 PM