I got a TREMENDOUS amount of advice when pregnant, from assorted aunts, great aunts, all relayed by an increasingly confused and stressed mum.
The reason, IMHO, that so much of the advice goes "Do or the baby will die/get sick/cord strangled" is because as pregnant mums, we would do ANYTHING to keep the baby safe, but not really bother too much if it is just something to keep the mum healthy.
Cord around the neck is probably the scariest scenario for me, and I would have done anything to avoid it.
My bete noire was this - "Don't turn over when you are sleeping, the cord will wrap around the baby's neck".
This meant that every time I wanted to switch sides while sleeping, I had to SIT UP, then lie down again on the other side. Good preparation for the sleepless baby years, I think now.
Ironically, after faithfully following this for the entire pregnancy, my baby did have the cord around her neck, TWICE. My gem of a OBGYN made sure everything turned out fine in the end.