I am so sorry you are going through this, believe me i have been where you are and its not any fun, especially with emotions going crazy ( with pregnancy) alot can contribute to depression. the only advice that i can give to you ( and this helped me ) is that you MUST take time for yourself, ask granny and grandpa to watch the children for a bit, or hubby and just get out on your own , even if its for a short while it will help you. Do not go out on your own saying to yourself "whats the use i have to go back" i use to do that say that it wasnt worth it becuase i was coming back, i mostly drove around i did not go into stores or stop anywhere, just my time to think. and i would have to do this alot!!!! before i got to the point where i could semi control my emotions. i had great friends to help me as i lived away from my family, and hubby helped also, thats the best advice i can give ya, hang in there girl IT WILL GET BETTER!
i will be thinking of you!