Dyeing your hair in 3rd trimester? 🤷🏻‍♀️

Je

My maternity shoot is in 2 weeks and my hair is... just a mess. Black on top, and the bottom half is a rusty brown and damaged. I really want to get my hair dyed a dark brown (I have naturally black hair) from root to tip to make it less messy looking... but I see conflicting answers/opinions online about dyeing your hair at a salon during pregnancy. Some say not to, some say it’s fine. What do you think?