I Had A In Clinical Abortior Chilln At 12 Weeks

I had a in clinical abortior chilln at 12 weeks on Nov,17th. All was well with some cramping and light bleeding, until this morning I had 3 cups of coffee and within 30 mins started having bad cramping and soaking 2 pads within a hour for the pass 2 hoirs passing large blood clots the size of 2 eggs and a lot of blood. No fever or chills although I feel a little dizzy when standing. Is this normal or could it be a result from drinking to much caffeine no water or not enough water?