How many years will my friends boyfriend get since he got her pregnant and she is 16 and he is 29?

Below are the basic sentencing "guidelines" for Misdemeanors and Non capitol felonies. Sentencing is ultimately up to the court. Actual sentences can vary based on a number of factors including past criminal history.

31-19-1. Sentencing authority[;] misdemeanors; imprisonment and fines; probation.

A. Where the defendant has been convicted of a crime constituting a misdemeanor, the judge shall sentence the person to be imprisoned in the county jail for a definite term less than one year or to the payment of a fine of not more than one thousand dollars ($1,000) or to both such imprisonment and fine in the discretion of the judge.
B. Where the defendant has been convicted of a crime constituting a petty misdemeanor, the judge shall sentence the person to be imprisoned in the county jail for a definite term not to exceed six months or to the payment of a fine of not more than five hundred dollars ($500) or to both such imprisonment and fine in the discretion of the judge.
C. When the court has deferred or suspended sentence, it shall order the defendant placed on supervised or unsupervised probation for all or some portion of the period of deferment or suspension.

31-18-15. Sentencing authority; noncapital felonies; basic sentences and fines; parole authority; meritorious deductions.

A.If a person is convicted of a noncapital felony, the basic sentence of imprisonment is as follows:
(1) for a first degree felony resulting in the death of a child, life imprisonment;
(2) for a first degree felony, eighteen years imprisonment;
(3) for a second degree felony resulting in the death of a human being, fifteen years imprisonment;
(4) for a second degree felony for a sexual offense against a child, fifteen years imprisonment;
(5) for a second degree felony, nine years imprisonment;
(6) for a third degree felony resulting in the death of a human being, six years imprisonment;
(7) for a third degree felony for a sexual offense against a child, six years imprisonment;
(8) for a third degree felony, three years imprisonment; or
(9) for a fourth degree felony, eighteen months imprisonment.
B. The appropriate basic sentence of imprisonment shall be imposed upon a person convicted and sentenced pursuant to Subsection A of this section, unless the court alters the sentence pursuant to the provisions of Section 31-18-15.1, 31-18-16, 31-18-16.1 or 31-18-17 NMSA 1978.

C. The court shall include in the judgment and sentence of each person convicted and sentenced to imprisonment in a corrections facility designated by the corrections department authority for a period of parole to be served in accordance with the provisions of Section 31-21-10 NMSA 1978 after the completion of any actual time of imprisonment and authority to require, as a condition of parole, the payment of the costs of parole services and reimbursement to a law enforcement agency or local crime stopper program in accordance with the provisions of that section. The period of parole shall be deemed to be part of the sentence of the convicted person in addition to the basic sentence imposed pursuant to Subsection A of this section together with alterations, if any, pursuant to the provisions of Section 31-18-15.1, 31-18-16, 31-18-16.1 or 31-18-17 NMSA 1978.

D. When a court imposes a sentence of imprisonment pursuant to the provisions of Section 31-18-15.1, 31-18-16, 31-18-16.1 or 31-18-17 NMSA 1978 and suspends or defers the basic sentence of imprisonment provided pursuant to the provisions of Subsection A of this section, the period of parole shall be served in accordance with the provisions of Section 31-21-10 NMSA 1978 for the degree of felony for the basic sentence for which the inmate was convicted. For the purpose of designating a period of parole, a court shall not consider that the basic sentence of imprisonment was suspended or deferred and that the inmate served a period of imprisonment pursuant to the provisions of Section 31-18-15.1, 31-18-16, 31-18-16.1 or 31-18-17 NMSA 1978.

E. The court may, in addition to the imposition of a basic sentence of imprisonment, impose a fine not to exceed:
(1)for a first degree felony resulting in the death of a child, seventeen thousand five hundred dollars ($17,500);
(2)for a first degree felony, fifteen thousand dollars ($15,000);
(3)for a second degree felony resulting in the death of a human being, twelve thousand five hundred dollars (12,500);
(4)for a second degree felony for a sexual offense against a child, twelve thousand five hundred dollars ($12,500);
(5)for a second degree felony, ten thousand dollars ($10,000);
(6)for a third degree felony resulting in the death of a human being, five thousand dollars ($5,000);
(7)for a third degree felony for a sexual offense against a child, five thousand dollars ($5,000); or
(8)for a third or fourth degree felony, five thousand dollars ($5,000).
F. When the court imposes a sentence of imprisonment for a felony offense, the court shall indicate whether or not the offense is a serious violent offense, as defined in Section 33-2-34 NMSA 1978. The court shall inform an offender that the offender's sentence of imprisonment is subject to the provisions of Sections 33-2-34, 33-2-36, 33-2-37 and 33-2-38 NMSA 1978. If the court fails to inform an offender that the offender's sentence is subject to those provisions or if the court provides the offender with erroneous information regarding those provisions, the failure to inform or the error shall not provide a basis for a writ of habeas corpus.

G. No later than October 31 of each year, the New Mexico sentencing commission shall provide a written report to the secretary of corrections, all New Mexico criminal court judges, the administrative office of the district attorneys and the chief public defender. The report shall specify the average reduction in the sentence of imprisonment for serious violent offenses and nonviolent offenses, as defined in Section 33-2-34 NMSA 1978, due to meritorious deductions earned by prisoners during the previous fiscal year pursuant to the provisions of Sections 33-2-34, 33-2-36, 33-2-37 and 33-2-38 NMSA 1978. The corrections department shall allow the commission access to documents used by the department to determine earned meritorious deductions for prisoners.