As per Islam, seeing your marriage in a dream could have different meanings depending you are a girl or boy, married or unmarried.
1- According to Ibn Sirin رحمة الله عليه, the greatest dream interpreter of Islam, getting married is an indication of marrying soon in real life for an unmarried girl or boy.
2- If an already married person is getting married in a dream, it indicates respect.
3- If a woman sees herself as a bride and she, marries a man and lives with him in her home, it is a sign that she will face loss.
4- If a man sees that he married a woman in a dream yet does not know her, it is a sign that he will die soon.
5- If a woman sees that she received a marriage proposal and her marriage is about to happen yet does not see that marriage in a dream, it is a sign of her death, or someone would die in her hands.
6- According to Jafar Sadiq رحمة الله عليه, seeing yourself getting married and having sex with a dead person in a dream is an indication that he will get something out of the wealth of the dead person as per Islam.
7- Getting married to a virgin girl and having sex with her in a dream means that the difficult work will become easier, and he will get wealthier.