That depends largely on if you are a woman.
Yes if the condom have a hole in it.
Yes because condoms are not 100% they can bust
Yes, Condoms are 99% effective as long as they are used correctly and are free of defects, but there is still that 1% -It is always best to use a second from of birth control, spermicidal lubricants etc.
If the condom was to break or fall off then yes you can get pregnant
If the condom brakes yes but i you have one one and it dose not brake than no
Yes u kan if it breaks or fal off plus its only 99 percent bt b safe