Black_Rose_Reisha
1> How do you kno when your having an orgasm
For males, an orgasm usually comes with ejaculation. For females an orgasm is usually just a feeling. Most women describe it as a sort of contraction in the v****a.
Black_Rose_Reisha
2> A week before my period I feel really(only because we have to use actual terms) ...excited...and want to have sex. Why?
We all get in the mood at different times throughout the month. A week or two before your period is a pretty common time to get in the mood because that's right around ovulation time for many women.
Black_Rose_Reisha
3>How far into you(girls) can a guy go before they break that layer thing that makes you stop being a virgin if you're checked by a doctor(the flap stats with the letter H i think)
You're talking about the hymen, but it sounds like you have been misinformed about it. The hymen is not inside the v****a. The hymen is part of the external female genitalia, in others words, it's on the outside.
A girl is no longer a virgin once she has sex, hymens have nothing to do with sex or virginity. Some girls have intact hymens when they are not virgins, and many virgins have hymens that are not intact. Most hymens are delicate and break long before a girl ever loses her virginity. Most hymens tear from masturbation, manual sex, tampons, and even just running and jumping. So that means your doctor would not know whether you had sex or not by looking at your hymen.
You can read more about hymens here
http://www.coolnurse.com/hymenBlack_Rose_Reisha
4> I have heard my friends talk about how when they have sex their boy friends sometimes stick their entire hand in their v****a. Is that even possible?
Yes.