Is it really important for him to believe that you're a virgin.
If it is then just lie about it or don't mention that you've ever had sex before..
How will he ever know??

yikes..idk if i believe that lying is the best option..i think that if it's asked then honesty is the best policy..however, to answer your question there is no way he can tell you are or are not a virgin and there is also no way you can recover your virginity

can 3 inches pleasure a girl?

Marriage is a lifetime relation.The base of marriage is love,trust & respect to each other.Though i would prefer to being honest but it actually depends on him whom u gonna married..he might not take the truth in a good way.But if he is intelligent enough then he might realise that you r fair with him...or if u not tell him whole life u ll feel guilty...
so,its up to u what u comforts u most.....
best of luck....

u can have an operation in which they sew ur hymen back up... its costly and painful from what ive heard and u need a while to recover. goodluck