Will smoking cigarettes affect quality of my bm? Should I pump and dump too?

Studies have shown that smoking does lower milk production. It also causes Interference with milk let-down and causes the production of lower levels of prolactin, a hormone needed for milk synthesis to occur. I'd refrain from smoking if baby is involved but if you really cannof, wait as long as possible between smoking and nursing. Studies have shown that it takes 95 minutes for 50% of the nicotine to be eliminated from your body. http://kellymom.com/bf/can-i-breastfeed/lifestyle/smoking/