Smoking kills your eggs??

Okay, It is hypothesized that smoking reduces the number of oocytes (eggs) in the ovary as women who smoke enter menopause earlier than nonsmokers.WTF does that mean?? I am about to be 21, I smoke cigs, about 8 a day, and I have been told that if I don't stop I won't be able to conceive. Is this true? I want to have a baby, but at the same time if i don't have a cig I go crazy! It is so calming and I have a stressful job and life, but who doesn't you know. I'm not trying to make excuses for myself and I am aware of the side effects of smoking cigs, but the way I look at it IM GONNA DIE ANYWAY, might as well live my life happy. So anyway, if you smoke cigs, and my bf and I both smoke weed "occasionally" (only at parties and stuff like that) How bad does it hurt our chances? We can quit the pot at anytime. If its hurting us. I just wanted to know how BAD it is hurting us. Has anyone gotten preggo, or known a couple that got preggo, when both partners smoked?? Please help and for the non-smokers be considerate with the comments okay I know there are people out there that absolutely HATE cigs! Trust me I use to be one of them. :) But I like it and Im just wanting to know how bad it is hurting us and if/when I need to stop. Thanks