Victoria Beckham 'Wouldn't Be Where I Am' Without Husband David Beckham

— -- Victoria Beckham knows how lucky she is.

The fashion designer credits her husband David for being the support system she's needed to be so successful.

"I wouldn't be where I am without David. He gives me the security and encouragement to do what I do," she gushed to Vogue. "I do the same for him."

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Beckham, 40, married the soccer star almost exactly 15 years ago. Their wedding anniversary is Saturday.

Together, they have three sons, Brooklyn, 15, Romeo, 11, Cruz, 9, and a daughter, Harper, 2.

"I looked at it [turning 40] and said to myself, I have four incredible children, an incredible husband, a business that's doing very well. I've worked hard and achieved a lot. I don't think I could have achieved much more," she said. "I wouldn't do anything differently."

"I've always worked hard and had a lot of fun," she added. "There's nothing I would change."