Visting the In-Laws

PregNerd

It was my hubby's birthday on Monday and since we spent Thanksgiving with my family, we are going to see his family this weekend. We leave in a few hours and I'm totally nervous. We suck at keeping secrets and given that this is a really close family I am praying that we can keep it quiet.

The other hard part is my MIL is very observent - she picks up on the smallest things all the time. We don't seem them too often, but I know she will notice a change in my eating habbits, the fact that I am turning down coffee and the like. 

How do you guys do it? What's your secret keeping trick?