Welcome to HealingWell and the Depression Forum.
I am sorry you are going through a bad time and I know you will find the members in this forum supportive and caring.
It sounds to me like you have some PTSD issues going on as well as depression too. Do you have a Physchiatrist or are you in therapy. I know with a babe on the way meds need to be monitored very carefully but I would certainly be talking with your physician about how you are feeling.
This should be a happy and exciting time in your life. May I suggest you make an appointment, write down all you want to talk about and see what your physician has to offer you.
I am not a professional but I do hate to hear you feeling so awful.
As far as the family dumping on you, let go of them for now and take care of yourself and your unborn baby.
Your hormones are probably all over the place too...........
Hugs to you sweetie,