Beyoncé has admitted that she felt "crazy fat" at times whilst pregnant.

The superstar singer gave birth to her first child Blue Ivy Carter in January last year as she solidified her relationship with husband Jay-Z.

Speaking to Vogue, the '4' star revealed that she was worried about her weight gain during the pregnancy.

However, the joy of giving life to a new child overcame any doubts over her image. Beyoncé said:

"There were moments when I felt my nose had spread 20 inches, and my face felt crazy fat, and my lips were swollen, and I gained 57 pounds! But ultimately I enjoyed it."

Speaking about post-pregnancy, the singer added: "After a month, I went strict. Before I gave birth I said, 'I don't want to get comfortable with whatever weight I gain. I want to still feel my best!'. I have a child - God willing - I'll give myself more time. Because it was just not necessary to do it that fast."