Balling my eyes out.

My niece was born today and I am balling my eyes out. I love her and so much already and she is such a blessing in our family but I just miscarried and I am a wreck it seems like everyone just forgot about my baby already and I cant. Even my husband is acting it's not a big deal and hes not upset but I cant stop crying, I dont want to get out of bed, and have no motivation to do homework or go to class. I suffer from SEVERE depression and i cant take this. This is literally killing me. And i don't know what to do.