The client’s first day of her last period was January 24. Which of the following should the nurse tell the client is her expected date of delivery?

Number 2 is correct.

Due date is determined by adding 9 months and 7 days to the first day of the client’s last menstrual cycle, making October 31 the correct date. September 30 is one month too early. November 15 and December 1 would make the baby overdue.