Also, anything you eat, drink, breathe, or digest DOES cross the placenta.
Codeine and vicodin are not classed as safe drugs to take while pregnant
and should only be taken when the benefit outweighs the risks. There are risks.
I severed my thumb when I was pregnant and I refused pain medication. I couldn't dress myself, shower myself, do the dishes or simple chores. I was in such extreme pain that I could only sit and bite my lip to keep myself from screaming.