Tell your doctor. It's the ONLY option. If you do not tell they will find out when you deliver and they will take your baby. And even worse your child could have birth defects from the drugs. The dr will know how to help you. They do see this a lot. And honestly. The dr would probably think that you telling him or her is a huge step in the right direction in wanting to get help and help your baby. Good luck hun. You can do this! I know it's scary but it's for the best.
Absolutely tell your doctor and do right by the baby, it will not be help against you if you do everything you are told to do.
tell your doctor. detoxing can hurt your baby if not done right
Tell your doctor. He or she is best able to advise you about how to stop.