Suggestions?!

Hey all! So my MIL is coming Into town next week for a week and loves to drink when she’s here with us. Sometimes when we’re out she’ll take it upon herself to order me a drink - and pushes so hard when we’re at home with wine. I’m kinda picky with wine because I’ll get headaches easily - I’ve had to pour a glass down the sink when she isn’t watching 🤦🏼‍♀️ anyway i can’t test to see if I’m pregnant until the probably the middle of next week at the very earliest. My husband and I don’t want to tell our families right away (as in until we know we’re pregnant at least ) we’re trying for baby #2. Any suggestions to help me turn down her alcohol advances? Haha