Some women have pregnancy symptoms in which they suspect that they are pregnant. Other women have a strong maternal instinct and just "feel" pregnant. But it is hard to really know without having an accurate pregnancy test (either at home or at a doctors office).
You cannot.
A baby comes along.
If you had unprotected sex.
has your period come yet? if it has your not pregnant if it hasn't then you are (but take a test just to be sure)
You or someone else that you know are thinking that they are pregnant and they want to know if its true.
you dont
You don't. The only real way to know that you are pregnant is to see your Dr and have a blood and/or urine test preformed.
By taking a pregnancy test. They can buy one online or at a supermarket or chemist
You don't. The only way to know for sure is to take a home pregnancy test or see a Dr.
You can take a test 2 weeks after unprotected sex. It will not be reliable prior to that. When women find out without taking the test varies since not all have pregnancy symptoms early.
Nothing. You either have to take a home pregnancy test or see a Dr.
you will know your pregnant because you feel sick all the time and you will know when you eat more than you usually do or your period hasn't come or is light.