hi, I understand ur concern n am here to sort it out. Depression is basically a mood disorder n mood regulation depends on many things like gender, surroundings, life situations etc. Now as compared to males, females are more prone to depression n pregnancy related depression is a very common phenomenon among females. So if u try to keep ur mood elevated will definitely help u in coping up with ur depression. Try to do things which make u feel happy ( like reading ur fav books, listening to ur fav music, watching ur fav TV programs, even meditation helps). If u feel that all these things are not helping I would advise u to consult a psychiatrist ( to my guess he will put u on antidepressants like SSRI s-- fluoxetine, cetalopram or sertraline etc). Tc.