Depression....

I'm 19+4 pregnant....

And I think I may have depression... Several of these key points are a yes for me and I'm just so overwhelmed, I'm scared to seek help but also sooo lost at what to do anymore. I know I should be happy I have a life growing in me, and at most times I do, but these feelings just won't go away... it's been weeks now and I have zero support from my husband.... what should I do ?