hi doctor.. am merried since 6yrs,now past 4months am plaing to baby.my periods regular 4 days i will get late .last jan10th i got my period,this month till now i dint get,i did my pregnancy spot test its -ve.i hve nausea ,head ache, low back pain .i went gyn-doctor he gve me tab duphaston 1 bd -5days,i fineshed .5days,still now i dint get my period...if there is any chance to pregnant?please reply me..