ok so i just got off my period and i'm a lil worried because i am out of my aleese 28 pack and i'm going on the IUD cause i heard its good for a year or more. I know i;m not pregant cause i just stop bleeding yesterday... i been using condoms ever sesne i've been off my pills. but i am still worried cause i still feel crampy ever sescne i just gotoffmy birth control. Should i worry? what should I do?