A person can now find out if they are pregnant before even a period is missed.
You should be able to know by November 3rd, 2009.
Maybe a month or a few weeks.
With in 12-24 hours your body knows its pregnant. But you wont know for about 3 weeks.
I want to know how long can be pregnant?
No. You do not have a period if you're pregnant. My mother had 6 children, and she had her periods through 3 of the pregnancies - I don't know how long or "normal" her periods were (she died some years ago) but I do know that she was 5 months pregnant with me before she realized she was pregnant!
Usually after you had sex it takes 2 weeks before you can use a actual pregnancy test.
A pregnant hamster will start hoarding lots of food and will get a little bit aggressive. They start showing the baby bump about a week before giving birth.
It's impossible to know based on that. To know how long she is pregnant, she really should see a doctor... which she should be doing on a regular basis anyway if she suspects or knows that she is pregnant.
hamsters are usually pregnant for about three weeks
You would not know anything about it, as you would have been dead a long time before.