Dying hair while pregnant

Shelby • 25 Years of Age, Due with my princess in June, Loss Of 3
When can I color my hair? I'm almost ten weeks and my new growth is something serious! My friend who I went to beauty school with said that I can color it at any time but just do it in a well ventilated area. Yes I went to hair school, yes I quit screw that lol. Anyways just double checking? I look horrible