My first appointment isn't until February 24

Yes, that's pretty typical.  Most doctors unless you are having issues early on, want to get you in where they can do a confirming ultrasound between 7-10 weeks along.  Start taking your prenatal vitamins, you can get them over the counter and any grocery store or pharmacy.  Don't stock up on them though, because your doctor may prescribe you something different with added DHA or fish oils.  Drink lots of fluid, your first trimester your body is adjusting to being pregnant and you can become constipated pretty easily (especially with the added vitamins).  You should drink at least 32 oz of water per day.  Limit your caffiene to 12 oz or less per day, no smoking or drinking alcohol and unless you are an extreme excersise person, don't start a new routine.  Walk, swim, things that keep your body active, but don't push your heart rate.  Other than that, continue to do things as your normally do.  Good luck!