Coming from a Vegan (or shall I say a vegetarian attempting to be vegan again), my thoughts are obviously geared towards all things natural. As of right now, breakfast is a smoothie with a cup of oatmeal. Snack is graham crackers. Lunch is a full salad and Amy's burrito and some of the Snikkidy chips. Snack is fruit (apple, grapes, pear). Dinner is a loaded vegetable dish with tofu or beans and a whole grain. Although it isn't perfect, right now it's working for me. My appetite tends to increase dramatically prior to menstruation. My husband finds it odd, but it's just the way I am. I have about 2 weeks of being very hungry all the time, and 2 weeks of a low appetite. During the "two week wait", fill your body with nutrient dense foods. These two weeks are the building blocks for that little embryo, be sure to give them everything they need and not what you want.
This is always the tough one. Doctors now say that drinking one glass of wine slowly won't harm your little growing bambino. I'm not sure I fully agree with them. But you may find yourself at a social event that you don't want the funny eye lurking over at you, wondering if you're pregnant and that's why you aren't drinking. My advice is, grab a small glass of wine and milk it throughout the night. That way you won't be harassed and it will help to calm your nerves. I steer clear of liquor and I've lost my taste for beer, so wine it is!
This is one I continuously struggle with. I've heard everything from "don't shake the foundation" to work out hard. There's also rumors that you shouldn't let your heart rate pass 150 during a work out. My rule of thumb: don't allow yourself to get breathless. If you're on a treadmill, keep track of your heart rate. If you're outside, make sure you could carry a conversation or sing to your music. Lifting is one of those things that I'm still afraid to do during that time. If I do any weights, I focus on that specific muscle and keep the weight low. Low weights, higher reps is a good rule of thumb during this time as well. That way you are not straining your body, but still getting the benefit of working out.
Seeing as I have issues with my stomach and anything dairy, for the most part I simply use the excuse that my stomach is really bothering me. It keeps me from having to explain to those that don't know me (or read my blog) that I am in limbo and praying there's something growing inside of me. Or I just say, I'm vegan. People usually stop talking at that point, in fear you may instill your values on them.
In the end: Do and say what feels right to you. I am not a doctor nor do I pretend to be. I live by experience. If something doesn't work for you, try something else. Just remember that these two weeks are crucial in building a proper foundation for your child. Take care of yourself mentally and physically and pray for a miracle.