I have no idea exactly how to describe this so if it sounds jumbled I apologize.
Yesterday a sweet young woman whom I am friends with on Facebook, and who just got married last winter, posted a picture of a pregnancy test with two lines. I hate that my first thought wasn't of pure joy and happiness for her and her husband but rather "I hope they didn't make a mistake by posting that too early and won't have to come back and tell everyone if something bad happens."
I remember that joy. I remember telling people at 5 weeks and being so excited we could hardly contain ourselves. And I remember miscarrying at 6 weeks and having to turn around and tell everyone that. While I know remembering those feelings makes me that much more thankful for what I have, there are times that I wish I didn't know those feelings and could just have happiness for a friend. But it's still there.