Postpartum tummy encouragement?

I am 33 weeks tomorrow and am really nervous about how my body will look after baby. After all I'm only 19 and really want to have a nice body again. I currently have quite a few stretch marks on my thighs and butt. And I can see some tummy stretch marks coming in now. My starting weight was 145 I am now 175 and am 5'6. I need some encouragement! Any progress pics or before and after pics would be amazing. Or if you have the same body weight and height of me how did you body turn out? Just help please! Thanks!