Indiana Code Title 35. Criminal Law and Procedure § 35-37-4-4

Sec. 4. (a) In a prosecution for  an offense described in IC 11-8-8-4.5(a):

may not be admitted, nor may reference be made to this evidence in the presence of the jury, except as provided in this chapter.

(b) Notwithstanding subsection (a), evidence:

may be introduced if the judge finds, under the procedure provided in subsection (c), that it is material to a fact at issue in the case and that its inflammatory or prejudicial nature does not outweigh its probative value.

(c) If the defendant or the state proposes to offer evidence described in subsection (b), the following procedure must be followed:

At the conclusion of the hearing, if the court finds that evidence proposed to be offered by the defendant or the state regarding the sexual conduct of the victim or witness is admissible under subsection (b), the court shall make an order stating what evidence may be introduced by the defendant or the state and the nature of the questions to be permitted.  The defendant or the state may then offer evidence under the order of the court.

(d) If new information is discovered within ten (10) days before trial or during the course of the trial that might make evidence described in subsection (b) admissible, the judge shall order a hearing out of the presence of the jury to determine whether the proposed evidence is admissible under this chapter.

(e) This section does not limit the right of either the state or the accused to impeach credibility by a showing of prior felony convictions.

(f) If:

the court shall instruct the jury that the victim's pregnancy is not due to the conduct of the defendant.  However, other evidence concerning the pregnancy may not be admitted, and further reference to the pregnancy may not be made in the presence of the jury.