to test or not----Update!!

Hi all!! All help is appreciated. Anyway. My last cycle ended on December 7th 2016 and I haven't had a cycle since. My partner and I are trying for an baby he says not to take a test yet but I want to. My friend who has been pregnant says I have the symptoms she has such as crapping, vaginal discharge, slight vaginal itching, breast feeling heavier and slight feeling of being nauseous. Should I take one or wait a little longer? 
Update--- I took a test this morning it said negative 😢 I just have a feeling something is going on.  Any suggestions? I've never been this late with all these symptoms.