Trying to conceive since 2 year for 2nd child on medication since 4 month current cycle taken letrozole and clofert 50 mg ovulation happend on 12th day as per follicular study. However I am having cramps in lower abdomen feeling heaviness and strech from 20th day of cycle onwards and also mild streching pain in legs also On follic acid also today is my 26th day of cycle and from 25-30th of cycle dr suggested to take dulphaton tab Pls guide why abdomen pain on 20th day of cycle