What is this baby anyway?

I am glad to report that I had a very good Dr's visit today. Mom got to go with me, so she got to hear the heartbeat which is always fun, but kind of shocked me today! It was waaaaay faster than the first time we had heard it - 155 bpm! This whole time I have been thinking it was a boy, but now I am not so sure! Regardless, we get to find out on January 9th if I will be adding pink to the green nursery or blue.