Excellent overview of what physical symptoms to expect, as well as what supplements will help with things like fatigue and morning sickness.

Here an OB/Gym discusses the 1st trimester, what to expect, what is going on with the fetus and what symptoms you may have. There are two more videos for the other 2 trimesters.

This doctor is very clear and concise. She explains what might be happening with your body during the first few weeks of pregnancy. Good video.