Not a psychic but I have some suggestions.
Where did you use it last? What were you wearing when you used it? Check the pockets of those clothes. If you have washed those clothes, check the clothes hamper and the washer.
Usually works for me!
If that doesn't work, pray to St Anthony (no lie...
sorry i think you married a bad man and his bad family you must know that this married is going no where ...the best thing if you want to stay together is to move far away from his family and make him work for his money and dond give money to him..as while you give him money he will not work for...