Congrats on your pregnancy!! I have 4 boys and all of them have been totally different. I really don't belive in the classic "boy" or "girl" symptoms. By all accounts my first should have been a girl and well, he is all boy!! It really is too soon to tell, so try not to think about it and just enjoy your pregnancy.
There is nothing wrong with getting your feelings out there and discussing them. It really, really helps a ton. I know because it's only been here recently that I've been able to start to recover from my GD. It's nice to have a place where people can understand how you feel without judging you. Oh, and the comments... I think if you have more than 2 of one gender you're going to the comments. The baby and I were getting groceries yesterday and the people at the check out were like, "Wow, 4 boys... you have your hands full", "When are you trying for a girl", etc. I usually just shrug it off and give them my DH's line of "Well, we could try again and then we'd have 5 boys!"