Here's the real deal on marijuana and pregnancy.
There is no concrete evidence that marijuana is harmful to unborn babies due to the fact that the majority of mothers who use marijuana while pregnant also smoke cigarettes and drink alcohol, rendering it impossible to tell what has actually harmed the baby.
That said, why risk it? Just because the scumbags in your family/circle of friends didn't care enough about their children to put their health at risk doesn't mean it's safe. It means they were lucky. Break the cycle and do the right thing for your child.
Your baby should be your priority, not your bong. If you can't quit for 9 months, you have major problems.
I'm not sure about the laws in Massachusetts, but smoking is bad for your baby. It can affect growth and may have serious consequences on your child's mental health when they are born. I can't stop you from smoking marijuana, bus you should take the health of your unborn child into account. I know you wanted information about DSS taking away your baby if you test positive...my conscience couldn't allow me to leave this question unanswered.