Ashlee Simpson-Wentz isn’t letting the third trimester stand between her and luxurious mane of colored locks. The pregnant pop star, who is due to deliver her first child in November, has been using herbal hair color to maintain the fiery hue in her redhead.

“She didn’t want to stop dyeing her hair, so she uses herbal hair color that’s safe for pregnant women,” an insider tells In Touch. “She loves her hair red, and so does [her husband] Pete [Wentz]!”