Beach vacation and wedding

9 days postpartum. I gained 30 lbs during pregancy and I'm hoping a little more of this is still my uterus and it'll go down alone. I've never been one to work out but I might have to now :( I've got a beach wedding and weekend vacation for my brother in 7 days - and suggestion on what kind of bathing suit is best? I'm still bleeding some and I would like to wear a 2 piece I went to the beach all the time while I was pregnant I loved people staring at my baby bump but now I'm a little more self conscience. Help!