** 1. Lynesterol [orgalutin/exluton] is a progesterone only pill and is specifically used by women who does not tolerate estrogens and who are breast feeding. PS. It is contraindicated when there is history of undiagnosed vaginal bleeding, blood clot disorder, severe liver impairment, and during pregnancy [and since your pregnancy test came negative thus can be used safely], only disadvantage is irregular vaginal bleeding 2. Recent studies have suggested that Exluton does not influence the production or the quality of breast milk, and although small amount may pass through breast milk but there are no known risk for the baby.