Through gentle suction the avent niplette pulls the nipple out into a small plastic thimble like cup in a matter of weeks of continued wear the nipple will stay permanently erect r r r r ideally use before becoming pregnant however you can also use in the first six months of pregnancy to achieve permanent correction alternatively use for a few minutes before each feed in the first few days after delivery this will pull your nipple out so your baby can latch on more easily r r r r nb