My understanding is that at most (if not all) schools its optional, there if you are interested, ok if you're not. I know that doctors aren't legally required to provide abortions, only to refer patients to someone who will if that is the patient's desire. I think it would be weird to force you to do something outside your own moral comfort zone.
It is not true that you have to refer- especially since referring is outside of many of our "comfort zones". The relevant laws:
Complete Text of the Hyde-Weldon Amendment
(1) None of the funds made available in this Act [the federal Health and Human Services appropriations bill for Fiscal Year 2005] may be made available to a Federal agency or program, or to a State or local government, if such agency, program, or government subjects any institutional or individual health care entity to discrimination on the basis that the health care entity does not provide, pay for, provide coverage of,
or refer for abortions. (2) In this subsection, the term health care entity includes an individual physician or other health care professional, a hospital, a provider-sponsored organization, a health maintenance organization, a health insurance plan, or any other kind of health care facility, organization, or plan.
1995 Medical Training Nondiscrimination Act
`SEC. 245. (a) IN GENERAL- The Federal Government, and any State that receives Federal financial assistance, may not subject any health care entity to discrimination on the basis that--
`(1) the entity refuses to undergo training in the performance of induced abortions, to provide such training, to perform such abortions, o
r to provide referrals for such abortions;
`(2) the entity refuses to make arrangements for any of the activities specified in paragraph (1); or
`(3) the entity attends (or attended) a postgraduate physician training program, or any other program of training in the health professions, that does not (or did not) require, provide or arrange for training in the performance of induced abortions, or make arrangements for the provision of such training.
`(b) ACCREDITATION OF POSTGRADUATE PHYSICIAN TRAINING PROGRAMS-
`(1) IN GENERAL- With respect to the State government involved, or the Federal Government, restrictions under subsection (a) include the restriction that, in granting a legal status to a health care entity (including a license or certificate), or in providing to the entity financial assistance, a service, or another benefit, the government may not require that the entity be an accredited postgraduate physician training program, or that the entity have completed or be attending such a program, if the applicable standards for accreditation of the program include the standard that the program must require, provide or arrange for training in the performance of induced abortions, or make arrangements for the provision of such training.
`(2) RULE OF CONSTRUCTION- With respect to subclauses (I) and (II) of section 705(a)(2)(B)(i) (relating to a program of insured loans for training in the health professions), the requirements in such subclauses regarding accredited internship or residency programs are subject to paragraph (1) of this subsection.
`(c) DEFINITIONS- For purposes of this section:
`(1) The term `financial assistance', with respect to a government program, includes governmental payments provided as reimbursement for carrying out health-related activities.
`(2) The term `health care entity' includes an individual physician, a postgraduate physician training program, and a participant in a program of training in the health professions.
`(3) The term `postgraduate physician training program' includes a residency training program.'.