Mottpot, I was a virgin til three weeks past my 20th birthday. I never felt weird about it; I knew plenty of guys who’d have loved to have “first dibs” on me, and that’s most of the reason I waited so long. (There are two kinds of guys–the ones who feel uncomfortable initially at the idea of taking a woman’s virginity unless they’re serious about her, and the ones that want you because you’re a virgin. The latter always appalled me.) I wasn’t ashamed of it at all; I was proud that I’d waited til I found a wonderful guy I thought was worthy of me. I knew I’d like sex; it was just a matter of finding the right guy to try it out with. 
The only thing that bothered me about my virginity was that girlfriends of mine–and I think women in general–use sex and dating and what-not as “bonding material” and since I couldn’t share any of my own stories, they felt bound not to mention them in front of me. Like the kid who wanders into an adult discussion and sees the adults switch topics. I think they felt like I was judging them for having already lost theirs; this was a frequent response of women who found out I was a virgin, and I found it frustrating, because I think it’s ridiculous that a personal choice equals judgment of others for not making the same choice. Honestly, I would’ve lost it sooner if the guy had come along sooner; I wasn’t saving it for marriage, I was just saving it for the right guy. This, too, seemed to bother a lot of women.
So I know what you mean when you say people assume there’s something wrong with you b/c you haven’t had sex yet; chalk it up to envy b/c a lot of women I know wish they’d waited, too. Not for marriage, necessarily, but for a meaningful relationship. A lot of girls lose theirs to their first highschool boyfriend, in an attempt to “keep him happy,” and a girl who gives it away for any reason other than her own happiness and fulfillment is probably going to wish she hadn’t. I think no less of them for it, but I think it’s ridiculous to think a virgin is “weird” for having held onto hers just because a lot of women don’t.
[sub]I do occasionally miss the days when missing my period couldn’t mean anything. :D[/sub]
As per the OP, I don’t think female virginity really matters to most people, at least in the US; I can’t think of any man for whom a lack of it would be a “dealbreaker,” although I do think there is still something of a double-standard about a woman’s promiscuity vs. a man’s. Cuauhtemoc is only partially correct; attitudes are changing, but a girl who pursues sex as aggressively as a guy is still going to be more open to judgment than her male counterpart. From women and men. I know several girls who sleep around at work, and lots of guys, but when the guys are mentioned, the attitude is, “Oh, he’s such a player!” The girls, OTOH, are called sluts and are considered “easy.” No one is envious of a girl who gets laid frequently by different men, but plenty of people are envious of a guy with the same M.O.
:shrug: I think it’ll be a long time for the playing field to be equal.