"i recently switched from loestrin to zovia. loestrin make me cramp really bad when i spotted.  and i took them everyday at the same time. i also would spot for about a week. when i started taking zovia which has been for a month and a half it made nauseous and had/have tenderness of the breast. nausea went away and my skin cleared up but i am still experiencing tenderness of the breast.. they hurt really bad and my nipples are sore. my breast have also enlarged to a cup size. i don&#039;t know if this will be for only a short time or will i continue having this soreness. but overall i like it minus my breast being sore and huge!!"