The glamour girl is said to have made the choice on Friday after receiving advice at a Surrey beauty clinic, where she had apparently hoped to receive a top-up of the anti-wrinkle treatment.
Price is not thought to be currently pregnant, but she has recently made no secret of the fact that she is trying for a baby with new husband Alex Reid.
Speaking of the star's beauty clinic visit, a source said: "Katie was gutted but she didn't want to take any chances. She was the one who asked whether it was safe to have the injections when pregnant.
"When the doctor said it wasn't advisable Katie said, 'No way'. Instead she had a massage and a normal facial for an hour and a half."
The insider added: "Deep down all she wants is to get pregnant so vanity has to be put to one side."
