hi cant find any info why but did find this on medhelp see if you think it helps you. i just wanted to explain how the copper t works for those of you that do not know. i found out of this out by doing my own research through several different places because usually a dr will not explain everything to you or they do not explain in a way you can understand. first off there is a reason it is called a copper t. the iud is made of copper and shaped like a t. the reason is made of copper is because copper actually kills sperm. the fluids inside your body kill a lot of sperm the moment it is introduced the copper helps to kill the rest. it is shaped like a t because the top part of the is attached to your uterus where an egg would typically attach itself. that way even if your fluid and the copper didn't kill all the sperm and an egg did get fertalized it usually will not attach to the uterine wall. it is possible for the egg to attach to another part of the uterine wall but is unlikely and usually when this happens there is a miscarrage (miscarriage) becuase the fetus cannot receive what is need through it's location. this all contributes to why it is more likely to have an eptopic pregnancy while you have an iud. if the egg cannot attach to the uterine wall sometimes it will attach to the folopian tube (eptopic pregnancy). this can be very dangerous and needs to be taken care of right away. although an eptopic pregnancy is more likely with women that have an iud that doesn't mean it's going to happen. the copper t along with your body kills almost of the sperm and in most women even if an egg does get fertalized if it cannot attach to the right spot on uterine wall usually it is simply discharged when you get your period. i know it can still be scary even though i have all this information i'm still scared when i am late but the less you stress about it the quicker you will get your period if you truly are not pregnant. hope it helps in some way. good luck
could i be pregnant. i have been on paragaurd for 3 years. i recently change the way i eat with no meat and it's been a month and now my period hasn't came. i am not irregular in my periods. i want to kno why it hasn't came? i even had symptoms of being on my period and still no blood.