Make a birth plan, and educate yourself as much as possible on topics you are Unsure of:)
Exercise, eat Healthy, don't stress and sleep a lot. Take prenatal vitamins with folic acid in them. Get on insurance make you're first appointment.
Don't smoke, drink, or do drugs.
Don't go in hot tubs or eat more than 12oz of fish a week.
enjoy your pregnancy because it's only temporary. Start buying baby stuff so it's not expensive later to get it all at once.