Self Image Issues During Pregnancy-- I Need Some Support.

I'm having a moment of weakness. I'm currently having a really hard time with self image right now. I wasn't stick thin before pregnancy, but I was healthy. Didn't have any stretch marks. Now at 33 Weeks I am completely riddled with them. I guess I inherited the worst genes. Ive wanted to have a maternity photo shoot since the beginning of my pregnancy, and now I feel like I can't. I've had several emotional breakdowns, and could really use some support. Any advice or words of encouragement would be well appreciated.