For a guy whos quite happy to think that nothing matters then have a fear of death is an interesting mix.
If there really is nothing after death and you cease to exist ( if you truely exist in the first place ) then what is there to worry about?
I'd say the people who are more likely to worry about it are the people who believe there is a hell, and wether or not they've redeemed themselves from it. Which in all likelyness is a no.
The concept of "Nothing" no space, no suns and not even time is too much for the human mind.
I'd disagree on that one though.
@Drinking/smoking thing: Everything you take will effect the baby, however how much is dependable on a trillion things, but the chance is always still there.