I just want to know something...?

after i had my daughter and went in for my 6 wek check up i got the IUD Paraguard. its been great and i've gottin my present from aunt Flo on a regular basis. my finacee still doesnt use a condom since this paraguard uses copper and not hormones. now my period has stopped and im a month late. but im stressed out of my mind and i have depression. i didnt sstart thinking i was pregnant until i started craving fried pickles and eating my most hated food ever tomatoes like they were candy my stomach has been hurting ever once in a while and i want to do nothing but sleep (but i know thats my depression same with me being moody). could the depression and stress be whats making my period come to a hault or could i be pregnant again. have any one who has had paraguard gotten pregnant on it.?