On which day, does ovulation occur in human female?

Explanation

### Step-by-Step Solution:

1. **Understanding Ovulation**: Ovulation is the process where an ovum (egg) is released from the ovary. It is a crucial part of the menstrual cycle in females.

2. **Menstrual Cycle Duration**: The average menstrual cycle lasts between 28 days, although it can vary from 21 to 35 days in different individuals.

3. **Phases of the Menstrual Cycle**:
- **Menstrual Phase**: This occurs from day 1 to day 4, where menstruation (bleeding) takes place.
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