Just adding my experiences with delayed menses during breastfeeding. My periods never have been regular. #1, nursed every 3 hours around the clock, solids at 4 months (did not sleep in my bed) menses at 10 months #2, nursed "on request", solids at 10 months,(slept in my bed) menses at 16 months #3, nursed "on request", solids at 6 months, (slept in my bed) menses at 18 months #4, nursed "on request", solids at 6 months, (slept in my bed) menses at 14 months Everyone is different! Susan