There are a lot of utube documentaries and I also recommend whattoexpect.com they're very informative and have helped me get ready for what's ahead. This app is really good also since it tells you about what's happening with both you and your baby, but I find whattoexpect.com a little better. Congrats! Good luck!
You should probably start reading online. There are numerous resources that give you some basic pregnancy mile stones. Remember every one is different, seriously. Not everything will apply to you. You should also talk to your Dr first about your questions since they will know you're medical history.