The answer to this question is not simple. The student may be permitted by the Designated School Official to enroll for less than full-time where it is recommended for academic reasons or due to the student's illness [I guess a complicated pregnancy qualifies]. The regulations are not specific as to how long a student may [...]

My friend's son wants to come to U.S. for higher studies or employment. He will be completing his BE Btech. What steps he needs to take - 1. For coming to U.S. to do his M.S. in Computer Science. -- He must immediately obtain admission to an M.S. program from an accredited U.S. University. This [...]

Since you have already filed an application for change of status it is important that you respond to the Request for Evidence from the USCIS. Not doing so could affect an application for a visa at the U.S. Consulate.

You will be unable to return in F status if you leave the country. Also, once you depart you are ineligible to use the remainder of the OPT period.

Optional Practical Training (OPT) is accorded to individuals in F-1 status. You should be able to file a COS application to be accorded F-2 status.

Yes, however, it may be unlikely that you will receive your Permanent Residency before your OPT expires. This could be a problem if you plan on continuing in school or extending your F status. Indicating you are in intending immigrant renders you ineligible for extensions of your F student visa. There may be additional complications [...]

Marriage to a U.S. citizen does not in itself invalidate your F-1 visa.

There are no restrictions. However, you must be prepared to explain to the satisfaction of a CBP official why you your entry is at a POE different from the one located nearest to the school.

I'm an international student.  I received a notice that my I-20 expired this year that the University did not notify me until after passing of the grace period of 60 days during which reinstatement could take place.  The university is asking me to leave the US and try to enter again with a new I-20 [...]

You could have your spouse petition (file an Immigrant Petition) for you immediately under the Family Based (2A) category. According to the Visa Bulletin for July 2012, it appears the backlog for India is approximately 2 years. However, numbers could move rapidly. If this happens, you could be looking at filing an Application for adjustment [...]