Now they say it is absolutely forbidden. My mother, in 1951, lived on scotch and hard candy as they were about the only thing she could keep down when she was pregnant with me. She also smoked. No problems here at all. Am alive and well no illnesses.
When I was first pregnant in 1975, the doctors said "have a glass of beer or wine each day to relax" and also "don't give up smoking, as we do not like to upset the mother with stress". All three of my children are fine.
Now, if they see you smoking or with a glass of wine in your hand, and you are pregnant...they just about arrest you and take the child to be born away. Times have changed, but in many other countries people drink moderately when they are pregnant.