When Miscarriage to Seek Medical Care

Call your health care provider if you know or suspect you are pregnant and you are experiencing any of the following:

• Vaginal bleeding

• Abdominal pain or cramping, or low back pain

• Weakness or dizziness

• Uncontrollable or severe nausea or vomiting

• Urinary symptoms such as burning, frequency, or pain with urination

Go immediately to the hospital's emergency department if any of the following are true:

• You know or suspect you are pregnant and have heavy vaginal bleeding (soaking more than one pad every hour) or pain in the back or the abdomen.
  
  
• You are passing something that looks like tissue (place what you have passed into a jar or container and take it with you to the hospital).
  
  
• You have a history of ectopic (tubal) pregnancy.
  
  
• You are extremely dizzy or pass out.
  
  
• You have a known pregnancy accompanied with passage of clots or other material.
  
  
• You have a fever of greater than 100.4°F.
  
  
• You are vomiting; nothing stays down.

from emedicinehealth.com

http://our-medical-center.blogspot.com/2008/01/m.html