Pregnancy depression 😢

I feel so guilty about it. We started trying March 2018, had 4 early losses, and now at 16 weeks with a little boy I feel so lost. I’ve always had mild depression, manageable but I get down easily and have high anxiety at times. It’s all gotten so much worse this pregnancy. I don’t feel like myself, I feel like my body isn’t even mine, my emotions are insane. I’ve never gotten so angry like I have during pregnancy over things. I just want to be happy and enjoy this time because I won’t be having any more after this, but I’m so miserable most of the time. It’s affecting my marriage and step kids, I just feel like it would be almost better for everyone if I weren’t around sometimes. Some days I’m so happy and feel like a great mom/wife, other days I just want to stay in bed all day. Has anyone else struggled with this? How did you get through it?