Hi I'm married recently( 4 months back) This month my period is start with light pink colour bleeding. ( whole period is pink and little red and brown, mostly pink) The flow is very less compare to other periods It has started on exact period date.(5th nov 2017) Before marriage my menstrual cycle was 26 days and after marriage my cycle was changed to 29 days. But I have regular periods My lower abdomen is lower back is painful Sometimes headache When I'm walking my lower abdomen is paining very badly May I know the reason . Why its happening like this ? This is first time.