You can make an infopass and bring a statement from her doctor that she will be induced on the 9th and it is not medically advisable for her to
travel one day after and see for which office they can re schedule you.
There should also be instructions on the interview letter about re scheduling.
You are talking about the fact that the INA 245( c)(2) bar does not apply to Immediate Relatives
( c) Other than an alien having an approved petition for classification as a VAWA self-petitioner, subsection (a) shall not be applicable to
(2) subject to subsection (k), an alien (other than an immediate relative as defined in section 201(b) or a special immigrant described in section 101(a)(27)(H) , (I) , (J) , or (K) ) who hereafter continues in or accepts unauthorized employment prior to filing an application for adjustment of status or who is in unlawful immigration status on the date of filing the application for adjustment of status or who has failed (other than through no fault of his own or for technical reasons) to maintain continuously a lawful status since entry into the United States;
