Being around smokers while pregnant.

Today for Christmas I was at my fiancé families home and his mom was smoking non stop inside her home. I was there for majority of the day. I’m in the second trimester. I was super uncomfortable with the smoking. I wanted to be there with everyone, I just wasn’t used to all the smoke around me. We are suppose to go back there for NYE next weekend and I’m just stressed being around all the smoking is going to harm my unborn baby. Will being around smokers for two whole days hurt the baby??? 😩 I wish people were more considerate. Even though I know it’s her home.