Genital warts after 6 year of marriage

I and my husband have genital warts around 1 month ago we both seen in our private part my husband seen early and after 10 days I can see also I am having warts. But we are loyal to each other we didnot have sex to anyone in our lives but after 6 year of marriage we didnot see any warts ..is it possible to see warts after 6 year of marrige and on same time we noticed ..aur our warts came from different source apart of sexual acitivity .