My strange addiction

This started out at about 6 months so like last month lol . Im 7 mnths pregnant now & one night i picked up these really powdery rocks that were outside & rubbed them alll through my hands it felt great . Then i came home & the laundry soap smells like my next meal ( have not eaten it ) . Then i went & bought this big bucket of powdered laundry soap & mann do i have the biggest urge to wanna chew it , but more to rub it between my hands . I sit and down my hands through the bucket & idk it feels great the hard specks of soap & the powder it leaves on my hands . Ahhhhh i hate this . HOPEING this urge stops after i give birthh . How did you guys stop your odd urges ?