Best work out programs for pregnancy?

J • 30. Married. Mom to a beautiful 1 yr old boy

So I gained 70 lbs last pregnancy 😯 although before hand I was pretty thin but def has a talking to at each appt. i had a job where I stood all day and by the time I got home I swelled up and didn’t want to move. I have lost it all slowly. And not ttc again and want to get a good routine down. I did slim in six years ago and thought I may try to find that again to download a digital. No dvds or DVD players these days lol