Depression and pregnancy

Hi fellow Glow users, just wondering if any of you ladies have experienced depression during your pregnancy? I added this anonymously because I am embarrassed of myself...I am just starting to experience depression (6 months) I have a great husband and really can't complain about my life, it just seems like some days the littlest things can make me so upset and feeling down. Today my swimsuits didn't fit anymore and I cried about it, I know it's silly but small things like that can make me feel so down and just wanting to stay in the house all day. It's the worst for my husband, he doesn't understand and hates to see me this way and I know I wouldn't want to be around me either. I just wish I was not feeling this way when I have so much to be grateful for. Anyone else experience this and what did you do to cheer up?