What Causes Vaginal Pain During Intercourse?

hello doctor...please tell me the way how i can enter my penis into my wife's vagina....we both are virgin...even its so lubricated when we starts to sex, but its too much hurting to my wife.. i cant get my penis inside her vagina...so please help me to solve this problem..i saw one hole inside her vagina where my finger can get in..is it the right spot?...