August 24"of last year i had unprotected sex. ever since then i havent had a period... Which were irregular but i did have one each month. i have had no signs of pregnancy. im naturaly overweight and i have put on some extra pounds these past few months. i took many home test all came out neggative. Ive had no cravings no symotoms yet everyone around me swears i am pregnant. i dont have insurance or the money to pay to get it checked out amd i know some woman never know they are pregnant and its rare but they normally continue having periods where as mine have stopped other then light spotting in september and october but after that i have had no blood or spotting or anything. i just need help in how common this is or if i sound crazy or what i need to do