Daughter dated a Nigerian Student for 3 years. He came to the USA via Canada on a student visa. They were looking at engagement rings with the intent of getting married. My daughter was on a low dose birth control pill that did not work and she became pregnant. At that time he was in a PHD program. He absolves himself of any responsibility and my grandson is 15 months old and he has not seen his son; Can his student visa be revoked. thanks

