So medically speaking, there is nothing called virginity. There is no way to prove that a girl is a virgin or that she's not. Religion spends a lot of time talking about virginity and purity, but that is just their construct designed to control sexuality and preserve identifiable paternity. A great deal of our culture is predicated on men knowing a child is theirs via limited sexual contact with the mother by others.

Don't be driven by what you perceive to be late or early to sexual activity, because you will be wrong. You simply don't know what your peers are really doing. They could be active, or they could be playing it off like they are.

The point is that you should do what you want, when you want it, and with whom you want. It should be on your terms with your continuous enthusiastic consent.

My recommendation is that it be with someone you are involved with emotionally, as many people are unprepared for the emotion and bonding that can go with sex. Let them be someone that communicates with you, laughs with you and adores you. Let them be someone that makes you feel spectacularly beautiful in your own skin.

Anyone who tells you who what when how etc is not okay. Don't let anyone shame you for either having or not having sex. Neither is shameful.

I was 17. It was good timing for me, with someone that I enjoyed sex with immensely. That first partner and the patterns of sex with them will be with you for a lifetime. Let them be good patterns.