Hi lovies! First time mom here will be 7 weeks on Saturday!!

I was wanting to start some kind of fitness program now. I feel so bloated and I feel like (maybe I'm going crazy) I've gained some water weight already... so I wanted yalls opinions on some dvds what you thought were the best? Because I have no idea where to start!! Lol. Thank you!!
Re: pregnancy workouts/dvds
Aug17 December Siggy Challenge: Funny Pics of Kids Afraid of Santa
TTC off and on 04/14
BFP 06/13/14 MC 06/15/14
BFP 12/14/14
1st Appt 01/13/2015
M/C 1/19/15 D&C 1/20/15
BFP 5/13/15
1st Appt 06/10/2015 Peanut has HB 150
A/S 09/02/15 It's a Girl!! Low placenta, but everything else great!