prenatal workout dvd

impreg

im wondering what types of prenatal dvd you recommend? i dont want something that's too easy. i run 4 days a week, averaging a total of 20-25 miles a week. the other two days i have been doing p90x, either back and biceps or shoulders and arms. so i want something that will give me a good workout.i'm getting kind of tired of p90x and want to try something new, but i would like to keep lifting, so a great upper body strength prenatal dvd suggestion would be great! thanks!