The start of the week can vary depending on cultural, religious, and personal contexts. Traditionally, many calendars consider Sunday as the start of the week. However, if you receive your paycheck every Wednesday, you might informally consider Wednesday as the start of your financial week.
In a workplace or financial context, you could view your week as starting on Wednesday since that’s when you receive your income. Ultimately, it's subjective and can depend on your perspective and needs—there isn't a definitive answer that applies universally.