My last period was 1-6-15 to 1-11-15 and have a 23 day cycle but miss up coming pieod i have been cramping as if it would start lite bleeding 2-4-15 ?

Period starting: This is certainly within the normal variation in cycle length and it sounds like your period is starting but,if u have had unprotected intercourse, it would be a good idea to check a pregnancy test and, if it is negative and your period still hasn't started, repeat it in 3-5 days.If that test is also negative, it's time to look into the other possibilities such as medications, stress, or illnesses