Depression during pregnancy & Husband stress

I guess I’m looking for some advice or maybe someone who can relate. This is my third pregnancy and the first two went so smooth. This time around everything seems so different! For a while now I’ve been feeling SO sad and just crying over every little thing! I’ve been trying to make myself feel better with the help of my husband but he really can’t do much for me since he’s been so stressed out from work and my emotions really adds to his stress. At first I thought he should be there and helping me but I’m starting to realize this is taking a big toll on him too. So I’m really facing something new, terrible, so so sad on my own. I’ve never had depression before and I don’t know if these feelings are defined as that but if I had to guess, it would be a lot like this:( I’ve got three more months until my baby girl gets here. You guys have any advice on how to get through something like this? Thank you in advance 💗