What is safe pregnancy exercise plan?

I have a lot of time since I got pregnant so I am reading a lot. I read especially books about pregnancy. Lots of them are mentioning safe pregnancy exercise plan. Even my doctor says that I should exercise. So, can you please tell me what safe pregnancy exercise plan is?

You should consult with your doctor to make such plan. His advice to start practicing is the first step. It means that your pregnancy is going well. If you are the beginner in exercising then you should chose the light exercises and you should do them slowly. If you do not notice excessive tiredness, pains or shortness of breath you can go to the next level of exercises. So you can gradually build up you form. That is the way to conduct safe pregnancy exercise pain.