Most likely not, but it is still possible that the sperm could stay motile through your cycle. Although this is not likely. This is not a good form of Birth Control at all.
possibly
yes you can get pregnant this way
no
Yes. You can get pregnant anytime. Always use protection if you do not want to get pregnant.
It could be that she is pregnant. Anytime you have unprotected sex, the woman could become pregnant. You are wise to be concerned. Pre-cum is very potent. If you are worried, buy her a pregnancy test as soon as the first day of her missed period.
No, your period does not stop. I started my period on a Friday, had unprotected sex on Sunday & he did not withdraw, and continued my period as normal. I went to the emergency room the next month wondering what was wrong with me (the thought of being pregnant never crossed my mind) and turns out I was pregnant.
no...
You can take the test 10-14 days after the unprotected sex.
No. It will not affect your body's schedule as far as your period go. However, if your hymen was broken during unprotected sex, and you are pregnant because of this, then you can expect to miss your period for the next 9 months ;)
no. Plan B is very powerful and if you took it immediately afterwards, you will not get pregnant.
If you've had unprotected sex for 3 months of course you can be pregnant.
The days around ovulation (between 10 to 16 days before your next period) are when you are at your most fertile. So, if you are trying to conceive (get pregnant), this is the best time of the month to have unprotected sex with your partner.