Final answer:
The most accurate response is that ovarian function typically resumes after the puerperium, but can vary. For non-breastfeeding women, ovulation may occur as early as 25 days, for breastfeeding women, it may take longer. Contraception should be discussed with a healthcare provider individually.
Step-by-step explanation:
The explanation by the nurse that would be most accurate in response to when a woman's ovaries will begin working again after childbirth is complex since it can vary for each individual. However, nursing knowledge and scientific evidence suggest that normal ovarian function and the menstrual cycle typically resume after the puerperium, which is the period after childbirth lasting approximately 6 weeks. Yet, for some women who breastfeed, ovulation may be delayed as breastfeeding can suppress the hormones needed for ovulation to occur.
Fertility can begin to return as the mother's body transitions back to a state where ovulation is possible. For those not breastfeeding, ovulation can occur as early as 25 days after birth, but for breastfeeding women, it might take longer. Regarding birth control, non-breastfeeding women should wait at least three weeks, and those with additional risk factors such as a cesarean section should wait six weeks before using methods that contain both estrogen and progestin due to the risk of blood clots. Women considering contraception should discuss their options and any concerns with their healthcare provider.
As for the first menstrual flow after childbirth, it can be irregular and it's not accurate to say it is usually heavier than normal for all women. Therefore, advice on contraception and understanding the ovarian and menstrual cycles should be individualized and discussed with a healthcare professional.