Pregnancy superstition or Culture?

When you become pregnant in Suriname you have to deal with some limitations and rules that come from the variety of cultures,in my country:

Don't sit with your leggs crossed during the pregnancy: It will hold the delivery back.

When you meet with a family member that is also pregnant you must always carry a twig and break it uneven every time you meet,for the person who delivers last, will have problems if they don't break sticks.

Everytime you crave for food or something specific you cant get at that
time, you must pinch yourself in the buttocks,if you don't the child will get a
mark wich will remind you of the time you wanted to eat pork for example your
child could get a hairy spot on its body just like a porks skin.

Don't get into trouble with family members,because this is dangerous to your unborn child. Especialy your husband parents,brothers,sisters and grandparents.

Don't stay out too late because a pregnant woman is totally open for bad spirits who only walk at night and may harm you.

There are lots of things you should not do when your pregnant,according
to the Surinamese.Some will call it superstition,to us its part of the culture.