weight loss after delivery

Vi
I Have always been a thicker girl (size 12-14), and am only 5'1 so I never carried it well. I was doing weight watchers before finding out I was pregnant. I am Delivering mid December, and looking for the best option for weight loss after deliver. I want to get back to my previous pregnancy first, but then I'd like to lose an additional 30lbs or so. What have you ladies been succesful with? (I don't want wraps or pills). Thank you!