The 41-year-old singer, who welcomed babies Moroccan and Monroe with husband Nick Cannon in April, said that hauling her twins around inside her was no easy task.
Appearing on the Home Shopping Network, she told one caller that the last few months of her pregnancy were a 'bleak time'.
'I was so uncomfortable,' she said. 'I'm kind of proud of myself. I really am - sorry, pregnant with twins is different than anything!
'[People] were always saying to me, 'Oh, but it's all worth it!' Yeah, but it's easy to say when you're not the one whose feet are this big! It turned into like a really difficult time.'
'My body went through so much,' she added. 'Holding those twins in - you have to keep them in as long as possible. It's a sacrifice you make for them. Literally I was like, 47-weeks pregnant. And anybody pregnant right now, there's push gifts here. Tell your baby-father.'