Scared

So yesterday about 5:30pm I'm sitting here watching tv and I feel like I just started my period. I get up go to the bathroom bright red blood. I call my husband asked him to meet me at the hospital because he was still at work. I get to the hospital did a sonogram and said everything looks fine to follow up with my doctor. So I go to the doctor today they said the baby's heart rate was fine and the bleeding has slowed down so they did an exam and they said they see no reason I should be bleeding. I'm 15.w 2d pregnant. I have had 2 miscarriages in the past but I also just gave birth to my beautiful little girl 8 months ago.