Bleeding during pregnancy

I remember that morning so well, it was around the first week of June on a Sunday. Our new kitten was not adjusting well to the new environment and he had terrible diarrhea. I said to my husband we need to take him to the vet because he is not getting better. So we take him to the vet and get the preliminary bill. A whopping $400! My husband was livid, but we both new that our kitten was sick and needed the care. Still  my husband was so stressed out and I in turn got stressed out. On the way home I start bleeding heavily as soon as we round the corner to our street. I jump out of the car and run to the toilet, and immediately start freaking out as a light pink liquid gushes onto my underwear. I start crying "Did I do this?" "What did I do wrong". My husband grabs me and puts me in the car, we rush to emergency. We immediately get put in a room away from all the other patients. Hours pass by as they poke and prod me, and send me for ultrasounds. I am thinking that I have lost the baby. After 5-6 hours in emergency we are told that it is a placental abruption meaning that the placenta had torn away from the uterus. The nurse who was so kind to us asked "Did you guys have sex?" We had, actually the night before, maybe a little too rambunctiously. She then told us that the same thing happened to her and that it was extremely common. So as it turned out we freaked out for nothing and I wish I had just waited and stayed home, especially since I had no cramping or any other pain especially when you have to pay a $150 copay to visit emergency. But seeing that this was our first experience with pregnancy we naturally thought the worst right away. Lesson to be had, don't panic.