SIL Expecting - Boy or Girl?

Next week, my SIL finds out if she is having a baby boy or baby girl. I am more impatient and anxious to find out the the baby's sex than I think B's sister is. And I wish I could go to share in the excitement but 1) I wasn't invited and 2) I have to work. Hopefully, B calls or sends me a text message as soon as he hears...

My husband thinks she is having a boy because of the Chinese Baby Gender Calendar (SIL was 29 and conceived in May). I am openly hoping for a boy (so I can make these adorable "Tie" onesies I saw online). However, everyone else in the family thinks that baby is going to be a girl. The results of the old wife's tales are mixed...they aren't really that accurate anyways, right? So, I guess all of our wondering minds will just have to wait until next week to be put to rest.