Probably not.
You can get some minor bleeding while pregnant but if its for three days you are unlikely to be pregnant.
See a doctor or get a pregnancy test kit.
yes
No.
Yes you could
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.
yes
Yes.
You can still get pregnant from pre-ejaculation. And on your period or not, you can still get pregnant.
YES. Even if you're actually on your period, you can get pregnant.
The chance to still be pregnant after a D&C is very slim but you can however be pregnant again.
NO, damage would be already done !
When they say that you are 9 weeks pregnant that is a guess. A scientific quess but none the less it is still an approximate guess. It cannot be pinned down to an exact day.
Yes