Is it just hormones pcos

Last month I was told I have pcos meaning it could be difficult to conceive although I have had a baby naturally. My boyfriend recently asked me to take a pregnancy test as we aren't on protection and he's noticed I've been tired moody eating loads getting lots of headaches urinating more I've been feeling sick for silly reasons like the bus which I get daily its just strange I dont know if I should take a test or is it a waste of time.i don't want to get my hopes up