Hi,
Welcome to ehealthforum.
Hymen can break without sex or intercourse. Most physical and strenuous exercise cause hymen to break. If hymen is broken or ruptured in these ways, bleeding on wedding night with intercourse does not happen. To know if hymen is already broken or is intact, visit your gynecologist for examination. A treatment/procedure called hymenoplasty can be done prior to your wedding to get the hymen repaired and ensure bleeding on rupture of hymen. Discuss about this possibility with our gynecologist.
Visit this link for details:
http://www.revirgination.net/hymenrepair.h
tml
Take care.