Does suboxone cause birth defect

From my own pregnancy in 2010. I was on subutex. Same as suboxone for my whole pregnancy. My son was born full term BUT weighted 4pounds 3oz and his left side is deformed. His left ear, left arm is greatly shorter than right arm and is twisted, and his left leg is slightly shorter than right one and when he was born he had NO WHITHDRAWLS @ all. But in 2009, I gav birth to a baby boy 6 pounds 4oz and no deformation @all but he did suffer withdrawal and stayed in hospital for 2 week's to get weened off. But with the baby born in 2009 I didn't ween down some on the subs but baby born in 2010, I weened down from 12 mg down to, 2 mg SLOWLY!!!!!!!!! and stayed @ 2 mg for the last month of pregnancy. U CAN NOT get off subs all the way while pregnant. Wean to a low mg but only a mg that u r comfortable with. Do not go threw any withdrawal @ all. Good luck