Unsure if ok to do....

Hello everyone! I recently just found out I'm a little over 5wks pregnant and have had a gazillion questions running through my head. One of them is, I have a hair appointment to get some color/highlights put in at around my 7 to 8 wk mark before my vacation to Florida. The product they use is organic with minimal harmful chemicals. Have any of you gotten your hair done this early? Is it completely frowned upon? I've read mixed things about it.