Ok I've always been pretty regular with my periods I'm late by 4 days I'm trying not to stress out or worry because I know that could add to it. Well I had sex on new years eve on the last day I ovulated, but I had a normal 5 day period like I always do from Jan 14-18 and it's now feb 18th and still no sign ? And advice besides take a test? And is there a way I can make my period start like masterbating anything?

