State one reason why breast-feeding the baby acts as a natural contraceptive for the mother.

Explanation

**Step-by-Step Solution:**

1. **Understanding Conception**: Conception occurs when sperm fertilizes an ovum, leading to the formation of a zygote, which develops into an embryo. This process typically requires the presence of ovulation in the mother.

2. **Breastfeeding and Hormonal Changes**: When a mother breastfeeds, her body produces higher levels of the hormone prolactin. Prolactin is responsible for milk production and also inhibits the release of gonadotropin-releasing hormone (GnRH) from the hypothalamus.

3. **Impact on Menstrual Cycle**: The inhibition of GnRH leads to decreased secretion of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) from the pituitary gland. This suppression prevents ovulation, meaning that the mother does not release eggs during this time.

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