While even the healthiest pregnancy has its share of aches and pains, there are some symptoms to be aware of that need immediate attention from your healthcare provider. If you have any of the following problems during your pregnancy, you should call your doctor or certified nurse midwife promptly, or seek immediate medical attention if you are traveling away from home.

• Abdominal or uterine pain or cramping
• Vaginal bleeding
• Severe nausea or vomiting, inability to hold down foods for 24 hours
• Gush or trickle of fluid from the vagina
• Burning or pain while urinating
• Persistent fever over 101 degrees
• Blurred vision or severe, persistent headache
• Sudden weight gain of 2 pounds or more, sudden increase in swelling of hands, feet or face
• Fainting or ongoing dizziness
• Severe constant pain in the back of either leg
• Severe shortness of breath
• Absence of fetal movement for more than 12 hours after 28 weeks gestation

While it's sometimes hard to judge which symptoms merit immediate attention during your pregnancy, you should seek medical advice for any of the above problems. Your doctor or midwife may inform you of additional warning signs based on your particular pregnancy.