Antenatal depression is normal, just as common as post natal depression; possibly more common - it's just that health professionals and women aren't so aware of it. I didn't know there was such a thing as antenatal depression until I got it.
It does feel like you're going mad. In many ways, you are experiencing what it must feel like to be mad, because the pregnancy hormones are playing havoc with your head! It's really really frustrating and you have my complete sympathy.
When I was pregnant, I became a person I didn't like. I was wildy touchy, irrational, obsessed that my partner was going to cheat on me. I felt afraid a lot of the time for no reason, and cried a lot of the time. It seemed hopeless, and like it would never get any better.
That in ITSELF would be hard, but lumped onto that you have the massive expectation that comes with a pregnancy - expectation from others, and from yourself. You are supposed to be ecstatic, blooming, glowing and shining with the miracle of new life. It's a taboo to say that you feel terribly sad, that you hate being pregnant. It's very hard to admit that to yourself, let alone anyone else.
The wonderful thing is, it will pass. The hormones will abate, and you will feel sane again. For me, I tried homeopathy and flower remedies (I was practically drinking the stuff at times) because I was too afraid to go to the doctors. I thought they would stick me on AD's and I didn't personally want that. I didn't know about other options, and I thought people would dismiss the idea of antenatal depression: or that they would decide I was going to be an unfit mother and take my baby away. In reality mneither of those things would have happened, but I was in such a messed up place I couldn't think straight about what treatment options would be wise.
Now I wish I had got help, because maybe I would have got some validation from someone. Perhaps it would have been a slight blip in my pregnancy, instead of consuming a lot of it. As it was, I felt like I was going mad. I wasn't: pregnancy hormones just didn't agree with me.
I agree with getting support from those around you. Antenatal depression is real, and if you can get your partner to take seriously what is happening to you, maybe you won't have to bear this burden alone.
I really hope you can get some help with this. I know what it is like, but rest assured it will go away and you and your baby will be alright
Take care.
x