why does my bf give me so much shit

when I'm feeling depressed? I feel like I can't ever tell him I feel so down because somehow we start arguing and he pushes me away. he'll start leaving and hanging out with his friends and it makes my depression worse. the last few times iv been so down and he's ended it with me saying I'm not happy with him and I should move on. i don't easily get sad but when I do I get stuck in these feelings horribly. I am currently 22 weeks pregnant and I felt the same my first time pregnancy. it just hurts because he doesn't try to understand. I tell him i literally just need to be held and reassured, a hug, extra attention but it seems like I'm asking too much.