This will be our first baby also.
A few things.....after reading through some of the posts on this forum.....that I wanted to chim in about:
1) I've been collecting things (maternity clothes on sale that I liked, baby clothes, toys, bath tub items for baby, garage sale baby items, stuff from friends that gave me things, etc. along the way over the past few years.....because we KNEW we were going to have a child at some point! There's no specific "time" that you have to start buying that stuff.....and you shouldn't feel silly, dumb or bad about it either. Just keep it packed up in the garage or a closet until you need it. That's what I do. It's nice to go through once in awhile and take a gander at all the cute and precious items that I already have......just waiting for my little one to arrive and use! It makes me smile when I look at the baby books to read to them, etc. It helps keep me going on my journey to motherhood. And....there are resale shops that will buy used items (even maternity clothes) so if you do end up buying stuff and then don't have a baby....you can always resale it and get some of your $ back!
2) Being happy, excited and scared. Yes.....every pregnant woman is. Whether it's your first or your fifth child....you are going to be a little scared. It is only normal and natural to be. It is also normal to be super excited and happy. And then go back to scared. It is like a roller coaster.....you will have those ups and downs throughout the entire pregnancy about this or that (money, health, etc.) and it is all fine and normal. Just know that every other Mama out there is going through the same worries and excitement as YOU.
3) Yoga. I have been doing yoga for almost 3 years and I love it and can't see myself NOT doing it. But....I know from my instructor that there are certain poses that pregnant women should avoid once you're past a certain week (I believe she said 6 weeks, so VERY early on) because we produce more relaxin in our joints and doing some stretching poses can be harmful to our joints....because you can over extend them if you are continuing the same workout/moves from pre-pregnancy. I have decided to stop going to my regular yoga class and have bought a couple of good Prenatal Yoga (and Pilates and regular strengthening/toning and cardio/weight training) DVD's to do in my own home. They are great because I don't have to leave the house and drive anywhere.....I can do them whenever I want (instead of a specific time during the day that the class was scheduled for) and I KNOW that the poses and exercises on the DVD's are specifically designed to be SAFE FOR PREGNANT WOMEN. It makes me feel at ease. One DVD even has a message from an OB Doc approving the workout.
Here are the Prenatal Workout DVD's that I own and have been doing and together they give you the great overall body toning that will keep you in great shape the entire pregnancy and even help with labor and childbirth (increase your stamina, cardio vascular endurance and help you prepare for breathing and focusing during childbirth) and all of the instructors in them are also pregnant, so you feel like if THEY can do it.....that YOU can too!
- Shiva Rea's Prenatal Yoga
- Suzanne Bowen's Long & Lean Prenatal Workout
- Summer Sander's (Olympic Swim Champion) Prenatal Workout (use a stretch band for resistance moves)
- Buff Mom's-to-Be The Early Workout (use 2-5 lb hand free weights)
- Pilates During Pregnancy with Niece Pecenka (Vol. 1)
4) Every pregnant women's symptoms are different. And each pregnancy she has is going to be a little different. I don't have the same symptoms this time around that I had last time.
What every woman needs to keep in mind: every pregnancy is its own journey....full of joys, curiosity, annoyances, beauty, worry, excitement and fear. It is a unique and personal ride that us as women get to go on. 
Enjoy it! Live it!
I'm also not feeling like it's real yet- despite having seen the heart beat twice and feeling nauseated most of the day.... 
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