Absolutely not. If this were true the human race could not have reproduced! Not to mention that most Europeans are not circumsized and they certainly have families. In asking a question like this, you need to seriously question your sexual knowledge and not have sex until you at least understand the mechanics as well as the consequences.
A pet ferret cannot prevent you from being pregnant.
No.
Depending on what type/ how much protection, there is usually always a chance of getting pregnant. If only a condom is being used, then it is absolutely still possible to get pregnant (the condom can break). The more protection used, the lesser the chance of getting pregnant, BUT the only way to prevent pregnancy 100% is not to engage is sexual intercourse at all.
by being cool.
Because you are sterile now, I don't think you can get pregnant. That is the entire point of sterilising, to prevent pregnancies in the future.
No getting a cold is not the sign of pregnancy.
A woman only ends up getting pregnant after being kidnapped if the kidnappers rape her, and she's ovulating.
no
If you are pregnant, missing a period after having sexual intercorse shows signs of being pregnant.
About a 5% chance.
The birth control patch is designed to prevent pregnancy. If you want to get pregnant, stop using the patch.
Get it spayed. Spaying a dog means removing its eggs.