Baby's room...when to start?!?

Alicia • Mommy to a beautiful baby girl, Scarlett Rose born October 2nd. 😍😍😍
I have started to work on my baby girls room. With summer approaching and our family travels a lot, I thought it would be best not to wait until the last minute. I get mixed reactions from people, some think it's to early and I'm crazy that I might jinx the pregnancy. I am 17 weeks pregnant. What are you opinions?? Have any of you started your nursery?