I can't be the only one..

Okay so I'm one month postpartum. I have 2 babies. With my first I got one whole stretch mark and I went back to my normal self pretty quickly. With my second I have a million big thick dark stretch marks all over my belly, legs, and arms. It hasn't bothered me that much but with the idea of getting into a swim suit this summer it's got me a little worried. Do these ever go away? I still really love my body but feeling a little more jiggly then I'd like. Will any excersises tighten this all back? I'm only a few pounds away from my pre pregnancy weight but SO SO JIGGLY!! Who can relate??