E.D.
I have extensive experience with this subject as I, and everyone in my family, has depression. Your situation is really situational depression, and not at all appropriate for anti-depressants (although any doctor would be more than happy to prescribe them for you) what you really need is someone to talk to, who is a good listener, not someone to give you advice. I suggest you contact a counselor, or a very good friend or family member, or even prayer if you are a religious person. As far as the depression goes, you should also be taking a vitamin supplement with DHA and I strongly suggest you get out of the house and exercise everyday. Again, if you are religious, reading scriptures daily will help. I treat my depression solely with exercise, spirituality and diet, and have been successful. You need to be taking care of your body in preparation for a pregnancy, not putting major drugs into it. Hang in there! Maybe there's a support group somewhere, or even just posting this you'll find someone who's been through the same who can be there for you.