After birth self consciousness

I'm sure a lot of you have developed stretch marks during your pregnancy. I know I have, I mean I love my daughter so much but she's not even here yet. I feel so self conscious about my body now that I won't even be wearing shorts this summer because I developed stretch marks behind my knees which I didn't even know was possible! I'm just afraid that after I give birth, my fiancé won't be as attracted to me anymore. I feel SO disgusted in my own body that I don't even want to have sex anymore, I'm even starting to get self conscious around him when I'm changing clothes. And I've been with him three years. I honestly just feel like curling in a ball with my gross body and cry. :,( please tell me this is normal, cause if it is then I can guarantee you I'll have post partem depression