A Queens man convicted of murdering his pregnant girlfriend was tossed into prison for 25 years to life yesterday.

Derrick Redd, 39, of Far Rockaway, was found guilty of stabbing Naisha Delain about 30 times, killing her and their unborn son on the baby’s due date. Before Redd was sentenced by Queens Supreme Court Justice Daniel Lewis, he slammed the judge for denying his lawyer’s motion to throw out the jury’s verdict.

Delain’s mom, Towanda Wimms, and other family members left the court praising the judge with applause.