Very down/depressed...

The last few weeks, I've been feeling very down/depressed. On top of complications with my pregnancy, I've had multiple issues at work (nothing out of the norm, I'm just feeling taken advantage of, under-appreciated and just sick of the b.s. and idiot clients). I have no motivation there to do well or even to do my job because I feel like all I get is $hit on. I'm bigtime stressing about our financial situation, considering the baby ISN'T here and we are practically drowning as-is. I'm still working two jobs and it never seems enough. Someone always has their hand out for one thing or another.

My shower has me stressed because hubby made a big stink about inviting his family and everyone thus far from his side has said no. I guess it was too much to expect his mother to rise to the occasion and show some support (not for me, but for the baby) but alas, no. I guess I shouldn't complain but it really does bother me, that she can't even make the effort for something so important. Which dominoes to the actual birth - how am I supposed to be cordial to this woman?!?

My weight is out of control. I've always had a problem with it, but it's beyond description and all I did was cry last night while going through pictures of myself before I was married. I was no Vogue model then, but what have I turned into?!?

I really believe I'm in a depression. I'm dwelling on all the negative things from the past and re-living all the horrible moments from yesteryear. Is there such a thing as pre post-pardom? Is it just hormones that are affecting me? All I want to do is sleep/cry
Not looking for a pity party, just some honest answers about what could be going on with me. Chemical imbalance???