I think I'm going to count 13 weeks, 3 days as the end of first tri for me. That covers 2 out of 3 ways to count it!
I'm honestly just feeling happy and in wonder. I keep thinking, 'is there really a baby in there?' It's just crazy. I know it's in there...I've seen it and heard it's heartbeat, and it definately hasn't come out, yet, but it's still just crazy. I think once I really start to show, I'll feel better.