Depressed.

I know it's a silly thing to be depressed about but I've been depressed since after my son was born October 19 2015. I feel like I'm not apart of his life at all everyone makes sure they beg me to take pictures of them doing things with him but no one can do the same for me. I have not one picture of me and my son together and if I do it's terrible because I take them myself. His father has a picture of every holiday and I'm not in one of them. His first time in the pool they stopped taking pictures once I got in so my boyfriend has a million. I know it's silly but everyone has all of these pictures to look back on and I don't even have one of him and I in the hospital. I can't look at anyone else's baby pictures because I get so depressed and no one understands. According to them I'm just selfish or childish for getting upset.