A 30 week pregnant woman comes to you for antenatal check up. She complains of mild dyspnea and palpitation. On examination pedal edema is present, ejection systolic murmur is present, ECG shows sinus tachycardia, left axis detion, occasional premature ventricular beat. ECHO - Small pleural effusion and mild MR. No other relevant findings are present. What is the next line of treatment?