The 35-year-old is expecting her fourth child this year, her first with current husband Kieran Hayler.
Price took to her Twitter page to share her misery over pain in her lower back area.
"My lower back is so bad I cannot walk tonight. Lying in bed eating crushed ice cubes. Grrrr," posted Price, reports femalefirst.co.uk.
"I have no energy so tired breathless and pale can't stop chomping on ice cubes over half way so not long to go now," she added.
Price also has 11-year-old son Harvey, from soccer player Dwight Yorke. She also has son Junior, seven, and daughter Princess Tiaamii, five, with ex-husband Peter Andre.