hi im 18 and me and d boyfriend r trying 4 baby. i jus wanna find ou i had unprotected sex 1 week and 2 days ago i got my peroied 4 days later but iv been gettin them on and off iv got a few urine samples done all negitve i have the symonths nausa bresat sorness headaces dizzyness back pain belly/side pain. im jus wonderin would anyone know wah the prob is. if so could someone help because im really confused and worried :'(