If you experience bleeding or spotting, pain in the lower abdomen, or fever, don’t hesitate to call your doctor. Prepare for your appointment with the doctor by writing all your questions down. Speak up and ask the doctor about anything that you're worried about. It doesn't matter if it seems insignificant - it's your right to ask!
Further, at any point during pregnancy, never resort to self medication as this may have adverse effects on your growing baby. Check with your doctor before you take any kind of medication, especially over-the-counter pills and syrups.