Im so sorry youre going through this.
Use your family to support you and help you through this, thats what they are there for. You dont have to talk to them, but knowing they care baout you and are there for you if you do decide to talk to them can help. I had threatened miscarriage that went on for 6 weeks with DS, and I was glad I'd told our immediate families becaues I didnt feel I had to hide the uncertainty I was going though. I didnt really want to talk about what I was feling, but at least they had some idea of why I wasnt acting normal. I cant imagine how much more magnified those feelings must be for you, Im so sorry