don't be worried, just take a pregnancy test of your period is late. Use protection and then you won't have to worry. It is good to use something so you don't get an STD anyway.
Possible but highly unlikely.
No, you'd probably need to wait until right before your period.
Probably not. If you had your period, then you are most likely not pregnant.
ZERO, sperm is very fragile and does not live long after being ejaculated. A woman must be ovulating for pregnancy to occur, not five days before ovulation.
Yes, it only matters that he ejaculated in you, not the before or after.
No. You need to start birth control BEFORE you have sex for it to be effective.
If your period comes, it's unlikely that you're pregnant
Yes, this certainly is a possibility.
Yes. There is always a chance for pregnancy. Yes. There is always a chance for pregnancy.
Sperm dies off quickly once it is in the air.