Welcome Erin,
Your little man has the most gorgeous blue eyes. :)
I don't think freaking out is that uncommon. It shows that you are considering your options and putting a lot of thought into having #2 and what that would entail. You've weighed the benefits and potential issues with having #2 and decided to move forward so naturally you'd be a little scared. I think having another baby is scary. I waited 4+ years to TTC another and even though we had ALL our ducks in a row regarding house, time, spacing, etc I still freaked. I just think that jumping into the unknown with baby #2 is going to cause some anxiety. If you feel that you are overly anxious for a good reason other than just some pre-conception jitters it may be a signal to re-evaluate your plan and make sure you are really ready before moving forward.
Welcome to the board and please feel free to stick around and hang with us. :)