I had always hoped to stay active and exercise throughout pregnancy as long as I felt up to it and it was doctor approved, of course. Some of the workouts I did prior like Insanity were a little too intense or like Hip Hop Abs had too much ab work (which you have to be careful about doing the right kind of ab work). So... I did a lot of research to find some good prenatal workout videos and these are my favorites.
Lindsay Brin's Complete Pregnancy 4-DVD workout set - as the title suggests there is a DVD for each trimester and also a postnatal one. I can't speak for the 3rd trimester or postnatal ones yet but I've enjoyed the 1st trimester and 2nd trimester DVDs. Each one has a cardio and toning workout of about 35 minutes and a shorter yoga workout of 20-25 minutes. It's upbeat and doesn't have you bored from doing the same thing for too long. I don't think this would have been a challenging enough workout I've I wasn't pregnant though.
Suzanne Bowen's Slim and Toned Prenatal Barre Workout - this is one DVD with 4 different workouts on it that are each about 20 minutes long. Lean Lower Body, Slim Upper Body and Core, Cardio Sculpt, and Aligned Stretch. That makes it easy to mix and match. I usually pick one or two of the first three and then add the stretching to make either a 40 minute or 60 minute workout. Suzanne is not pregnant and these are still a great workout for her so I'm sure I'll still want to do these postnatal and beyond. Another woman in the video is in her 3rd trimester so you can see the slight modifications to do if you are in the 3rd (or sometimes 2nd) trimester. Cardio sculpt is probably my favorite and this series is my favorite in general because I really feel like I get a great workout when doing it. I'd definitely try out other workouts of hers. So if you only buy 1 DVD, I'd get this one but I like having variety to not get bored so it's nice to have the others too.
And I have still been doing the stationery cycle bike occasionally but it's sometimes not as comfortable. I also like going on walks but that isn't much fun when it's cold out so hopefully I can add those back into the variety of workouts when spring comes. Ah spring... I'm ready for you any time!
My goal is to workout 4 times a week or more. Of course only do what you feel comfortable with... in early pregnancy I didn't do anything beyond walking and then during the nauseous stage during 1st tri I was not able to meet the 4 times a week. Hope this helps anyone looking for good pregnancy workout videos!