For me, it's depend on urself.
If someone said they are not going to have pre-marital sex.I understand. BUT try to think this way, if u r divorced with ur husband then how? U had lost ur viginity to him, and then u become single again. In other view, it is almost the same with pre-marital sex.
HOWEVER, dun simply get sex with anyone. Coz nobody wan others to say they are cheap rite?unless those who really dun mind(this kind of ppl we can juz ignore because they dun like themselves already for wat we nid to care)