Depending on what you mean by "sick". If you're talking about cancer, that's not contagious. However, hep, flu, pox, mumps...than no it isn't safe. This is due to the fact that while pregnant, there are certain meds you can't take that protects you against those illnesses. Besides kids with the flu and mumps shouldn't be anywhere but home.
Unless the doctor say otherwise you can do everything as normal apart from heavy lifting. You are pregnant not sick. Most women work as well as taking care of a household and kids.
Yes it is safe.
NO! Absolutely not.
No. It is very risky to work as a x ray technician, when you are pregnant.
A Pediatrician helps little kids who are injured or sick.
It is very risky to work even with dental x rays when pregnant.
No. If you are too ill to work then you are not eligible for unemployment.
having street kids because they have broken parents or their parents are sick or disable or homeless and poor and no work
To do charite work and travel and help sick kids.
if you work in an area with children who have strep throat, then you definitely can
As long as your doctor feels that it is safe for you to do so until you get close to delivery date.
Yes, dental work including bite wing x-rays are safe before as well as during pregnancy.