We need to see a doctor anyway. It can life neurologist or internist, also pregnant in the first place it is necessary to visit (if not bleeding and pain tolerant) obstetrician-gynecologist.

All that you can do yourself tovisits to the doctor - to put on the back of a cream or ointment, which are composed of diclofenac, indomethacin, ibuprofen, or other analgesics (they are also anti-inflammatory drugs).

If the pain is unbearable, and there is at least one of the following signs, mandatory call »ambulance» or an immediate visit to a general practitioner or a gynecologist (in the case of pregnancy):
- increase in the total and / or local temperature;
- weakness, apathy, lethargy, drowsiness;
- headache;
- nausea and / or vomiting (even if they are single, but the back continues to ache);
- »flies» before the eyes;
- the appearance of edema;
- upset of the stool;
- discharge from the genital tract (if blood is allocated - go only to the ambulance, before her arrival, pregnant women should lie and not get up);
- a change in the color of urine, tenderness or discomfort during urination;
- Increasing or decreasing (less than 60 beats per minute) of the heartbeat, its arrhythmia.

If pain tolerant and such signsNo, you can take a pill pain medication (except for pregnant women), in the morning to pass urinalysis and go to the doctor with his result (no later than tomorrow, the day after tomorrow).