I am 5 weeks pregnant. is it ok to get highlights in my hair or just colored?

Postpone.: This is the most critical period for your fetus' organ development and you should do all you can to avoid potential toxic exposures. Although no good evidence proves that having highlights or hair dying is teratogenic, i would recommend postponing this until after the pregnancy so as to avoid regrets and second thoughts. Better safe than sorry. Take Folic Acid 1-5 mg daily and good luck!