Using Naegele’s Rule, calculate the estimated date of birth for a client who reports the first day of the last menstrual period was August 7.

Number 2 is correct.

Rationale: Naegele’s Rule is based on accurate recall of the client’s last menstrual period. It assumes a regular 28-day cycle. The estimated date of birth is calculated by taking the first day of the last period, subtracting 3 months, and adding 7 days.