miscarriage?

got my positive test Monday. appointment to confirm Wednesday(around 5 weeks pregnant) then on Thursday I started bleeding. it started light and got heavier over the next days. I had mild cramping with the bleeding. yesterday was the worst it was but no worse then period cramps. this morning getting out of bed I felt the gush which resulted in this nasty pic (sorry). weve been trying for 9 months. I've read up soo much on what it could be and I've read miscarriage, it could be nothing, it could be a twin that wasnt viable. so many different things could be happening to me. twins run in both sides of the family so I'm thinking that could be a possibility. my ultrasound is Friday and I'm crossing my fingers for good news. anyone who has experienced my problem, can you tell me how it ended for you?