Early pregnancy do's and don'ts

For those of us that just got BFPs for the first time and have to wait a couple of weeks to see a dr.. Is there anything we should/should not be doing? I have prenatals and obviously no caffeine or alcohol. Should I also stop eating deli meats and soft cheese at this point? I'm worried since we go out to eat a lot and with holiday dinners coming up what to have or avoid while still trying to hide the news from people. Thanks!