A lot is happening to you when you are pregnant. There is a lot to do, remember - oh and there is a person growing inside you forever changing your body. It's an incredible experience, although through the fog of nausea or vomiting it may be hard to appreciate at that moment.
Recently, I came across this overview of what is happening to the average body going through pregnancy, which I thought some may find useful. And, in addition to that there is a Nursery Bird checklist of some things you need to do when pregnant and soon after. It's not the full list, but there is more than enough to keep you busy!