Does pregnancy cause back fat? September 13, 2022December 28, 2023BRA 0 (3) The fat you gain will not look like your normal pattern of weight gain, instead it will accrue on your back, hips, and thighs. Ugh! Pregnancy hormones drive this unique pattern of fat accrual.Related Posts:How can I get rid of back fat during pregnancy?How do you get rid of back fat during pregnancy?How do you get rid of back fat after pregnancy?