my age is 29 running. usually i have 30 days cycle. last month (march) for the first time we are try for baby. that time means next month april i got my period 39 days my cycle change. now my question is after april we are not properly try to get baby but still my period missing last 2 days, but i feel that period pain but dont get period why? is my period cycle changes permanently from 30 to 38 days?