Bleeding at 14 weeks

Hey ladies, I'm hoping someone can help put me out of my misery. I am 14 weeks 3 days pregnant and this morning i had some pink/red blood when i went to the bathroom upon waking up. I immediately freaked out. I've been to see my doctor today and had bloods taken (results in 2 days). I also had a scan done and everything looked okay. Little one still has a strong heart beat and is moving happily, also measuring exactly where he should be. There was nothing they could see that would cause any bleeding. I haven't had any blood at all since that one time this morning, and i haven't had any cramping or pain at all. Even though little one looks to be okay, I'm still all over the place emotionally and mentally. Has anyone had bleeding at this stage and if so, do you know what caused it? (I do know everyone is different but I'm hoping reading positive stories will make me feel better).