Seeing Blue or Pink

So I had an ultrasound earlier this week to do some genetic testing on our baby. Everything, DNA wise looks great. Of course, what I was most interested in was if could we tell whether we are having a boy or a girl. But since I am only slightly over 12 weeks, I figured we wouldn't be able to tell. But of course, I asked. The technician said she had a guess, but wasn't quite sure. Since Matt wasn't there, and I didn't think he would appreciate me finding out without him and since she said she only had a guess, I didn't ask her to tell me her guess. But I will say this, I watched really, really carefully the whole time looking for anything that would suggest that we were having a boy and I didn't see anything. Of course, I've only seen little girl babies in ultrasounds and I'm not trained in this kind of thing. But still, I'm just saying, if there's a boy in there, it wasn't apparent to me.