My kids aren't very good at keeping secrets

One of my children accidentally spilled the beans. However, the kids are very excited to meet their new sibling on (but preferably a little before) April 30th. I went in today and saw the heartbeat and got a tiny little picture on the ultrasound but I thought this picture above looked more visible. My parents are supposed to get back from their mission to Chile the first week of May. I wonder if they'll be able to come back a little earlier than planned?

Here we go again... :) Where's my pillow? I need a nap.

*Update: It looks like my parents are going to try to come back mid-April. That will give them some time to go home, see my SIL's new baby, then hopefully come up here to watch our kids while I deliver. Hooray!