Bleeding?

Amy
I'm about 12 weeks. Friday I went to bed and woke up with blood gushing out. I went to the ER expecting the worst and they said everything looked fine but we had to wait and see. I went home and stayed in bed all weekend. I just saw my ob and he said everything looked fine they don't know where the blood was coming from. Baby looks fine and I'm relieved but I'm still pretty scared bc they don't know why. What if something happens again? I'm really paranoid now.