Feeling depressed while pregnant

I’ve been feeling really depressed lately. I’ve been depressed since the age of 15. I felt better when I had my first baby 8 months ago. I am 3 months pregnant and I don’t know if it’s just the hormones or it’s coming back. I don’t want to do anything I just want to be in my room with my baby. When my husband comes home some times I don’t want to talk to him or be around him. I live with my in laws I don’t want to talk. Sometimes I don’t feel like eating so I’ll drink one of those protein drinks people drink when they aren’t getting enough to eat. I don’t want to go talk to a therapist again it doesn’t help. It makes me feel worse if anything. I don’t want medicine it makes me feel drained out and I’m allergic to some of them. I don’t know what to do. I don’t know what to think. Is it the hormones? Is it me?