IMO your babe will not suffer any long-term damage. You sound like you want to go to the do, and there are valid reasons for doing so. It's also important for you and hubby as a couple. You could start expressing and freezing milk supplies now, the babysitter is, you say, trustworthy. Have you also the possibility of any family staying at your place? You will fret a bit, you will want to keep in regular contact, but you will probably have a great time- and, surely you have to start taking small breaks now and again from your baby at some point? Just remember, there is nothing wrong with you wanting to attend, wanting to share this event with your husband, wanting to support his career and also worrying about your baby- all perfectly natural. I think it will be fine if YOU choose to go.