Food Myth Questions

I just found out I am pregnant for the first time! I am so excited! But I am also terrified because I am so worried about what I can and can’t eat. I have researched a lot, but I won’t see my doctor for 4 more weeks. My main question is meats. We aren’t telling family or friends yet because it’s still so early. My friend is having a BBQ soon. I am worried about eating sausage hot dogs or hamburgers because people say not to eat those meats in case it isn’t cooked fully. I just want to make sure before I go there and decide to eat/ not eat it. Thanks!

What are some other things you were surprised you couldn’t eat that maybe I haven’t thought of yet? (I didn’t know Caesar dressing was bad because of raw eggs).