Hello, a dear friend of mine has been diagnosed with Placenta Previa. She smokes Marijuana, multiple times, daily. She was an alcoholic prior to her pregnancy. (I use the term prior lightly) I just wanted to know, REALISTICALLY...will her Smoking affect her during her pregnancy or are the mortality rates still about the same? To clarify, I believe she stated that it was complete previa. I am concerned for her health and I would hate to do this...but if I need to report to her OB that she continues to use, in order to protect the child, I will..