Wish me luck tomorrow

We are supposed to spend the day with my parents. We have yet to tell anyone we are expecting. We have a plan for next weekend after our first scan. The issue is, I am feeling sick to my stomach all day long. I drink room temp lemon water to help it, but even then it is not great. No idea how I am going to keep my mom from being suspicious all day. I am also so bloated! Plus the fact that I am napping with my toddler during the day, I never napped before.