Think I'm miscarrying:,(

Brittany • Baby boy was born April 21, 2015 at 21:49 weighing 6 lb 10 oz and 19 inches long!(:
Started cramping and spotting yesterday so I went to the hospital and they said my levels were still rising so it was good. I woke up this morning in terrible pain and bleeding was slightly heavier. Is this a definite miscarriage?:(