Second hand smoke

Hi ladies, I’m 6w1 and next week we are going to my parents. My mom smokes like crazy and we always get in a fight when I ask her not to smoke near me or my daughter. I didn’t want to tell her I’m pregnant yet but I might have to and maybe she then will stop smoking around me? I’m super anxious already that we have to visit, we are staying for 4 days so it’s not a short trip either. Can you please give me any tips on how to manage this? I had a mc in December so I’m already really anxious by being pregnant anything else is on top...