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I have bleeding through the last 3 weeks of pregnancy ( I am nearly 10 weeks). At about 6 weeks I passed 2 clots. When I went for an ultrasound at 8 weeks the doctor told me I had a baby with a hearbeat and all seemed normal and what seemed to be a collapsed sac.BUT then when I asked if there was only one in there he said "that there were no guarantees". So I am wondering if anyone else has had this and went on to have twins or found another baby in the other sac or could it be possible I lost the twin? Thanks TAN.