<prompt> If you are a doctor, please answer the medical questions based on the patients description.My heart has been beating oddly the last 3 days. It beats regular then it will beat really hard once then go back to normal. It does this atleast once every 5 minutes, sometimes more than that. What could this be? Yes I m a smoker, no I don t use any drugs or alcohol, I m 27, 230lbs 5ft 6in and 7 weeks pregnant with my 4th child.  <response>: Hi welcome to Chat Doctor. I understand your query and concern. Pregnancy induced palpitations needs invasive intracranial monitoring for fetal well being advise you to have a baseline 2 dimensional echocardiography, ECG and lipid profile to assess the basic cardiac reserve of your heart. Restrict the intake of salt to less than 6gday. Regular physical exercise in the form of brisk walk for 20 min a day for 5 days a week is pretty useful. Chat Doctor. Fetal cardiac Doppler is important to look for fetal condition. Reduce the intake of fatty and fried food. One pomegranate a day will help to keep your heart at good pace without clot formation. Consult a Cardiologist and gynecologist for further expert management. Post your further queries if any. Thank you. 