Which statement by a newly delivered woman indicates that she knows what to expect regarding her menstrual activity after childbirth?

"My first menstrual cycle will be lighter than normal and then will get heavier every month thereafter."

"My first menstrual cycle will be heavier than normal and then will be light for several months after."

"My first menstrual cycle will be heavier than normal and will return to my pre-pregnant volume within three or four cycles."

I will not have a menstrual cycle for 6 months after childbirth."