So nauseous

The last time I told you I wasn't sick at all. However, 3 days later it started. Now every morning, and during the day as well, I feel nauseous. Since we haven't told anyone about the pregnancy I have to be careful what to say or how to behave at work and at other places. This weekend my mom is here as well, she is staying for 4 days. We just told her I have the flu, which explains the nauseous feeling, being tired all the time and my lack of appetite. If only she knew I am pregnant....