Yes.
When you are on/having your period, it is usually when you have one of the highest chances of getting pregnant.
You could have gotten pregnant on your period
Not normally
yes
No. If you still have you period, you cant be pregnant.
A pregnancy test would still be positive even if you were still getting your period
There is always a chance of getting pregnant anytime of the month. Just because it is the day after your period does not mean you can't get pregnant, you can get pregnant on your period as well.
About a 5% chance.
this means you are no longer pregnant. you were either not pregnant, or you have lost the baby.
If you had unprotected sex you could be pregnant, if you are still concerned take a test.
if you period hasn't come, theres a chance. probably worth getting a test
Even in the presence of bleeding, you could still be pregnant.