During the first tri, if hair colouring is unavoidable, check out organiccolorsystems.com. From what I know, they offer bleach-free and ammonia free hair colouring systems that are safe for preggy mums.
As for me, regardless if it's organic or not, you might wanna opt for a hair colour on the 2nd, or best, on the 3rd tri.
Being a first time mum so, you can't blame me for being anxious. I would say no, put it off when you've already given birth.
Well, I understand what your concerns are. I am a first time mum myself and I feel like it's better to sometimes chill and not to think too much about the simplest things. It helps a lot..
Thank you ladies for your inputs! I myself learned a lot from your replies. Sorry for not replying immediately to this thread and just wanna let y'all know that I have decided not to. I dunno. Perhaps I was just a bit anxious as this is my first pregnancy. I know it's safe but it's my personal decision not to. But again, thank y'all! I will be giving birth soon so I know our discussions will surely make me smile soon when I hold my baby.