They won't allow switching to B1/B2 right after an attempted AOS filing. However, if she is still enrolled in school, she may be able to get a medical exemption to keep her F1 status with a reduced class load or avoid classes altogether for a semester. Although with the summer break approaching that may be unnecessary, since she doesn't have to attend class in the summer break and she might give birth before the fall semester.
Originally Posted by ananga73
Last edited by Jackolantern; 5th April 2012 at 09:56 AM.
PD: Jan 2003 (EB3 rest of world)
I-485 Approved: July 2007
I am a layman, not a lawyer. What I write here is not official or professional legal advice. In addition, my answers on this forum are specific to the scenarios discussed in each thread and should not be generalized to other situations.