woman childbearing pregnancy potential test negative wcbp serum hysterectomy prior pregnancy childbearing negative test registration potential women days prior serum pregnancy wocbp minimized women manner using potential avoid products childbearing women pregnancy test childbearing negative potential serum days prior study study pregnancy potential test negative childbearing contraception agree women use hours pregnancy test negative potential childbearing serum women urine study pregnancy potential women childbearing study importance wocbp advised avoiding test menopausal post pre pregnancy women test negative peri serum status urine pregnancy childbearing test negative potential women serum days prior urine test pregnancy negative serum hours medication female childbearing required pregnancy test miu negative sensitivity performed hours lenalidomide ip prior females pregnancy test negative childbearing potential serum urine days prior