Well the day after my period ended I did have unprotected sex (pull out method). About two weeks later I started having slight cramps. Now my period has came a week early, and it's far lighter than usual, it is mostly clots. With the addition of absolutely horrendous cramps. Now my period is usually somewhat heavy, but it isn't this time. Also I've been really bloated lately. On a side note I have either a bladder infection or UTI right now so this could be some cause out the mysterious cramps. Should I be worried that I am with child?