postpartum bodies

Susie • 24,fianceé,mama.💍👶🏼 16-11-16 Arlo 💙 13-04-18 Ezra 💙
My c section was 7 weeks 2 days ago,I weigh 68kg now,when I was 15 weeks pregnant I weighed 66kg,the top picture is right after my c section and the bottom is 7 weeks later,I'm back in pre pregnancy clothes (not that I had any maternity clothes) I just want to tone up now,any good tips,I've never done any kind of ab workouts before!