I have severe depression, and tbh I'd ask your doctor to recommend you to a good therapist before psychiatrist. A lot of times just talking and getting it out, and having someone else's point of view is really helpful and medication is over-perscribed, too.
Also, women arn't the only hormonal ones sometimes. Men can get everything from sympathy pains and weight gain, aches and swelling, to the same mood swings. It's all very normal to be this stressed out, you are having a child! Try to talk to your OH, I know things haven't been going swimmingly, but if she can't talk to you then I'd go see a therapist, there's a woman at my hospital who specializes in seeing mum- and dad-to-be's together or seprately and she's fantastic.
I've struggled with depression all my life and when it started really affecting my school work (as in, I failed two semesters in a row) I got myself to the doctor to see what was really up. It's the best decision I've ever made.
I had been happy, sad, happy, sad like a yoyo spending days hid out in my room not giving a sh*t about anything. It's rough and I'm nervous now that I'm pregnant because I'll have to switch medications. Nevertheless, when I got started at the doctor things took a whole turn for me and I'm currently finishing a 19-credit semester with a (current) 3.4 gpa. It really was a good choice.
I agree with everyone here that you should go talk to a professional (I agree with Quirky about seeing a therapist first - I still see mine, I love her!) and man, if you need anyone else to lend an ear I'm just a PM away. I've found that of my friends, the ones with similar emotional issues have become my best and most supportive through everything. No one else really understands. Is your OH being at all understanding of this?
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