It is not obligatory for the man to have intercourse with his wife on the wedding night. They may delay that until the time that they choose. But intercourse -- in general -- is obligatory, and it is the right of both spouses, and the wife must allow the husband to do that when he wants, so long as it is not harmful to her, and the husband must have intercourse with his wife as much as suffices her, so long as it does not weaken him physically or distract him from earning a living.
See also question number 1078.
And Allaah knows best.