Self Confidence... am I the only one???

I'm 6w postpartum and I've been struggling really bad with my self confidence... No one talks about this part. I walk past the mirror and cringe.. I try my best to stay off of social media, because all I see is girls with perfect bodies. I can't help but think 'I wish I looked like her' I try to tell myself my body looks this way for a reason, and that reason is my baby boy! He's a blessing to me, but I can't help but feel ugly. I don't even let my SO touch me or rub me because I just feel not myself. It's depressing honestly.