third trimester??

Haley • Due December 23, 2016 with baby # 1! 👶🏻
I am 26 weeks today. <a href="https://play.google.com/store/apps/details?id=com.glow.android.nurture">Nurture</a> just sent me a notification saying welcome to the third trimester. I thought that wasn't until 28 weeks?