If you are saying you are smoking meth in your 11th week of pregnancy, in my humble opinion, you should go check yourself into a rehab facility like yesterday. The risks to your unborn baby are very dangerous. I would go right now. Good luck, and God Bless you both.
You need to consult your ob/gyn immediately. This is a very complicated issue.
We need a little bit more info to be able to answer your question.
Are you taking them and on the 11th week? Not sure what your question is?