Really bad depression at 22 weeks

Me and DH have been fighting constantly, with him insisting he doesnt feel important enough. This pregnancy is my first and has not been easy for me, and now I feel worthless even asking him for help...but he doesnt do anything unless I ask him to. I dont feel affectionate at all and my libido is gone but no matter how much I explain this he takes it personally.

I dont know what to do, I actually packed all my stuffed animals because cuddling those wasnt even helping. I dont see him making it with me anymore because he's threatened to leave twice if he doesnt feel more loved and wanted and I just wanna curl up and die because I dont know what to do. I legit have no energy and its hard for me to even find the energy to get out of bed, let alone all the things he expects me to want to do (and take the initiative for). I have no idea if this is my depression kicking in due to lack of smoking marijuana (which was medically monitered by my doc for depression, anxiety disorder, and PTSD and now im not msoking anymore due to the pregnancy,) or if this is a whole new thing....

I dont wanna spend my pregnancy wanting to die :-/