"No, I feel as though I have done my bit," she said, reported OK! magazine.
The fashion designer already has four children: Brooklyn, 16, Romeo, 12, Cruz, ten and Harper, three.
And it seems like the Beckham family will stop there.
The 41-year-old did however say she was planning an expansion in another area of her life: her fashion line, which will be growing to cater to all the family.
"I believe in dreaming big and that’s something I will continue to do," she said at the awards.
In her touching letter, she said her children were "simply the greatest achievement of [her] life."